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SCHEDULE III - CONDENSED SUPPLEMENTARY INSURANCE INFORMATION (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Supplementary Insurance Information, by Segment [Line Items]      
DAC and VOBA $ 8,207us-gaap_DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired $ 8,886us-gaap_DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired $ 6,667us-gaap_DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired
Future Contract Benefits 20,057us-gaap_SupplementaryInsuranceInformationLiabilityForFuturePolicyBenefitsLossesClaimsAndLossExpenseReserves 17,251us-gaap_SupplementaryInsuranceInformationLiabilityForFuturePolicyBenefitsLossesClaimsAndLossExpenseReserves 19,780us-gaap_SupplementaryInsuranceInformationLiabilityForFuturePolicyBenefitsLossesClaimsAndLossExpenseReserves
Other Contract Holder Funds 75,512us-gaap_SupplementaryInsuranceInformationOtherPolicyClaimsAndBenefitsPayable 74,548us-gaap_SupplementaryInsuranceInformationOtherPolicyClaimsAndBenefitsPayable 72,218us-gaap_SupplementaryInsuranceInformationOtherPolicyClaimsAndBenefitsPayable
Insurance Premiums 2,988us-gaap_SupplementaryInsuranceInformationPremiumRevenue 2,687us-gaap_SupplementaryInsuranceInformationPremiumRevenue 2,462us-gaap_SupplementaryInsuranceInformationPremiumRevenue
Net Investment Income 4,859us-gaap_SupplementaryInsuranceInformationNetInvestmentIncome 4,754us-gaap_SupplementaryInsuranceInformationNetInvestmentIncome 4,698us-gaap_SupplementaryInsuranceInformationNetInvestmentIncome
Benefits and Interest Credited 7,211us-gaap_SupplementaryInsuranceInformationBenefitsClaimsLossesAndSettlementExpense 6,372us-gaap_SupplementaryInsuranceInformationBenefitsClaimsLossesAndSettlementExpense 6,008us-gaap_SupplementaryInsuranceInformationBenefitsClaimsLossesAndSettlementExpense
Amortization of DAC and VOBA 1,114lnc_AmortizationOfDacAndVobaNetOfInterestTotal 938lnc_AmortizationOfDacAndVobaNetOfInterestTotal 1,029lnc_AmortizationOfDacAndVobaNetOfInterestTotal
Other Operating Expenses 3,232us-gaap_SupplementaryInsuranceInformationOtherOperatingExpense 3,028us-gaap_SupplementaryInsuranceInformationOtherOperatingExpense 2,917us-gaap_SupplementaryInsuranceInformationOtherOperatingExpense
Annuities [Member]      
Supplementary Insurance Information, by Segment [Line Items]      
DAC and VOBA 3,062us-gaap_DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_AnnuitiesSegmentMember
2,770us-gaap_DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_AnnuitiesSegmentMember
2,092us-gaap_DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_AnnuitiesSegmentMember
Future Contract Benefits 1,569us-gaap_SupplementaryInsuranceInformationLiabilityForFuturePolicyBenefitsLossesClaimsAndLossExpenseReserves
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_AnnuitiesSegmentMember
138us-gaap_SupplementaryInsuranceInformationLiabilityForFuturePolicyBenefitsLossesClaimsAndLossExpenseReserves
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_AnnuitiesSegmentMember
2,339us-gaap_SupplementaryInsuranceInformationLiabilityForFuturePolicyBenefitsLossesClaimsAndLossExpenseReserves
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_AnnuitiesSegmentMember
Other Contract Holder Funds 21,070us-gaap_SupplementaryInsuranceInformationOtherPolicyClaimsAndBenefitsPayable
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_AnnuitiesSegmentMember
21,269us-gaap_SupplementaryInsuranceInformationOtherPolicyClaimsAndBenefitsPayable
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_AnnuitiesSegmentMember
21,108us-gaap_SupplementaryInsuranceInformationOtherPolicyClaimsAndBenefitsPayable
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_AnnuitiesSegmentMember
Insurance Premiums 173us-gaap_SupplementaryInsuranceInformationPremiumRevenue
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_AnnuitiesSegmentMember
116us-gaap_SupplementaryInsuranceInformationPremiumRevenue
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_AnnuitiesSegmentMember
98us-gaap_SupplementaryInsuranceInformationPremiumRevenue
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_AnnuitiesSegmentMember
Net Investment Income 1,034us-gaap_SupplementaryInsuranceInformationNetInvestmentIncome
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_AnnuitiesSegmentMember
1,044us-gaap_SupplementaryInsuranceInformationNetInvestmentIncome
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_AnnuitiesSegmentMember
1,082us-gaap_SupplementaryInsuranceInformationNetInvestmentIncome
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_AnnuitiesSegmentMember
Benefits and Interest Credited 959us-gaap_SupplementaryInsuranceInformationBenefitsClaimsLossesAndSettlementExpense
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_AnnuitiesSegmentMember
835us-gaap_SupplementaryInsuranceInformationBenefitsClaimsLossesAndSettlementExpense
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_AnnuitiesSegmentMember
868us-gaap_SupplementaryInsuranceInformationBenefitsClaimsLossesAndSettlementExpense
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_AnnuitiesSegmentMember
Amortization of DAC and VOBA 365lnc_AmortizationOfDacAndVobaNetOfInterestTotal
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_AnnuitiesSegmentMember
390lnc_AmortizationOfDacAndVobaNetOfInterestTotal
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_AnnuitiesSegmentMember
325lnc_AmortizationOfDacAndVobaNetOfInterestTotal
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_AnnuitiesSegmentMember
Other Operating Expenses 1,252us-gaap_SupplementaryInsuranceInformationOtherOperatingExpense
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_AnnuitiesSegmentMember
1,113us-gaap_SupplementaryInsuranceInformationOtherOperatingExpense
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_AnnuitiesSegmentMember
1,018us-gaap_SupplementaryInsuranceInformationOtherOperatingExpense
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_AnnuitiesSegmentMember
Retirement Plan Services [Member]      
Supplementary Insurance Information, by Segment [Line Items]      
DAC and VOBA 148us-gaap_DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_RetirementPlanServicesSegmentMember
173us-gaap_DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_RetirementPlanServicesSegmentMember
102us-gaap_DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_RetirementPlanServicesSegmentMember
Future Contract Benefits 2us-gaap_SupplementaryInsuranceInformationLiabilityForFuturePolicyBenefitsLossesClaimsAndLossExpenseReserves
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_RetirementPlanServicesSegmentMember
  3us-gaap_SupplementaryInsuranceInformationLiabilityForFuturePolicyBenefitsLossesClaimsAndLossExpenseReserves
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_RetirementPlanServicesSegmentMember
Other Contract Holder Funds 16,223us-gaap_SupplementaryInsuranceInformationOtherPolicyClaimsAndBenefitsPayable
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_RetirementPlanServicesSegmentMember
15,310us-gaap_SupplementaryInsuranceInformationOtherPolicyClaimsAndBenefitsPayable
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_RetirementPlanServicesSegmentMember
14,712us-gaap_SupplementaryInsuranceInformationOtherPolicyClaimsAndBenefitsPayable
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_RetirementPlanServicesSegmentMember
Net Investment Income 830us-gaap_SupplementaryInsuranceInformationNetInvestmentIncome
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_RetirementPlanServicesSegmentMember
827us-gaap_SupplementaryInsuranceInformationNetInvestmentIncome
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_RetirementPlanServicesSegmentMember
799us-gaap_SupplementaryInsuranceInformationNetInvestmentIncome
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_RetirementPlanServicesSegmentMember
Benefits and Interest Credited 474us-gaap_SupplementaryInsuranceInformationBenefitsClaimsLossesAndSettlementExpense
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_RetirementPlanServicesSegmentMember
470us-gaap_SupplementaryInsuranceInformationBenefitsClaimsLossesAndSettlementExpense
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_RetirementPlanServicesSegmentMember
451us-gaap_SupplementaryInsuranceInformationBenefitsClaimsLossesAndSettlementExpense
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_RetirementPlanServicesSegmentMember
Amortization of DAC and VOBA 37lnc_AmortizationOfDacAndVobaNetOfInterestTotal
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_RetirementPlanServicesSegmentMember
48lnc_AmortizationOfDacAndVobaNetOfInterestTotal
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_RetirementPlanServicesSegmentMember
42lnc_AmortizationOfDacAndVobaNetOfInterestTotal
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_RetirementPlanServicesSegmentMember
Other Operating Expenses 368us-gaap_SupplementaryInsuranceInformationOtherOperatingExpense
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_RetirementPlanServicesSegmentMember
363us-gaap_SupplementaryInsuranceInformationOtherOperatingExpense
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_RetirementPlanServicesSegmentMember
363us-gaap_SupplementaryInsuranceInformationOtherOperatingExpense
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_RetirementPlanServicesSegmentMember
Life Insurance [Member]      
Supplementary Insurance Information, by Segment [Line Items]      
DAC and VOBA 4,749us-gaap_DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_LifeSegmentMember
5,713us-gaap_DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_LifeSegmentMember
4,281us-gaap_DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_LifeSegmentMember
Future Contract Benefits 10,347us-gaap_SupplementaryInsuranceInformationLiabilityForFuturePolicyBenefitsLossesClaimsAndLossExpenseReserves
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_LifeSegmentMember
9,058us-gaap_SupplementaryInsuranceInformationLiabilityForFuturePolicyBenefitsLossesClaimsAndLossExpenseReserves
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_LifeSegmentMember
9,177us-gaap_SupplementaryInsuranceInformationLiabilityForFuturePolicyBenefitsLossesClaimsAndLossExpenseReserves
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_LifeSegmentMember
Other Contract Holder Funds 37,280us-gaap_SupplementaryInsuranceInformationOtherPolicyClaimsAndBenefitsPayable
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_LifeSegmentMember
36,997us-gaap_SupplementaryInsuranceInformationOtherPolicyClaimsAndBenefitsPayable
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_LifeSegmentMember
35,365us-gaap_SupplementaryInsuranceInformationOtherPolicyClaimsAndBenefitsPayable
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_LifeSegmentMember
Insurance Premiums 558us-gaap_SupplementaryInsuranceInformationPremiumRevenue
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_LifeSegmentMember
486us-gaap_SupplementaryInsuranceInformationPremiumRevenue
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_LifeSegmentMember
441us-gaap_SupplementaryInsuranceInformationPremiumRevenue
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_LifeSegmentMember
Net Investment Income 2,530us-gaap_SupplementaryInsuranceInformationNetInvestmentIncome
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_LifeSegmentMember
2,452us-gaap_SupplementaryInsuranceInformationNetInvestmentIncome
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_LifeSegmentMember
2,396us-gaap_SupplementaryInsuranceInformationNetInvestmentIncome
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_LifeSegmentMember
Benefits and Interest Credited 3,783us-gaap_SupplementaryInsuranceInformationBenefitsClaimsLossesAndSettlementExpense
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_LifeSegmentMember
3,283us-gaap_SupplementaryInsuranceInformationBenefitsClaimsLossesAndSettlementExpense
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_LifeSegmentMember
2,982us-gaap_SupplementaryInsuranceInformationBenefitsClaimsLossesAndSettlementExpense
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_LifeSegmentMember
Amortization of DAC and VOBA 655lnc_AmortizationOfDacAndVobaNetOfInterestTotal
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_LifeSegmentMember
447lnc_AmortizationOfDacAndVobaNetOfInterestTotal
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_LifeSegmentMember
614lnc_AmortizationOfDacAndVobaNetOfInterestTotal
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_LifeSegmentMember
Other Operating Expenses 658us-gaap_SupplementaryInsuranceInformationOtherOperatingExpense
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_LifeSegmentMember
628us-gaap_SupplementaryInsuranceInformationOtherOperatingExpense
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_LifeSegmentMember
619us-gaap_SupplementaryInsuranceInformationOtherOperatingExpense
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_LifeSegmentMember
Group Protection [Member]      
Supplementary Insurance Information, by Segment [Line Items]      
DAC and VOBA 248us-gaap_DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_GroupProtectionSegmentMember
230us-gaap_DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_GroupProtectionSegmentMember
192us-gaap_DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_GroupProtectionSegmentMember
Future Contract Benefits 2,249us-gaap_SupplementaryInsuranceInformationLiabilityForFuturePolicyBenefitsLossesClaimsAndLossExpenseReserves
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_GroupProtectionSegmentMember
2,033us-gaap_SupplementaryInsuranceInformationLiabilityForFuturePolicyBenefitsLossesClaimsAndLossExpenseReserves
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_GroupProtectionSegmentMember
1,882us-gaap_SupplementaryInsuranceInformationLiabilityForFuturePolicyBenefitsLossesClaimsAndLossExpenseReserves
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_GroupProtectionSegmentMember
Other Contract Holder Funds 183us-gaap_SupplementaryInsuranceInformationOtherPolicyClaimsAndBenefitsPayable
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_GroupProtectionSegmentMember
200us-gaap_SupplementaryInsuranceInformationOtherPolicyClaimsAndBenefitsPayable
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_GroupProtectionSegmentMember
223us-gaap_SupplementaryInsuranceInformationOtherPolicyClaimsAndBenefitsPayable
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_GroupProtectionSegmentMember
Insurance Premiums 2,252us-gaap_SupplementaryInsuranceInformationPremiumRevenue
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_GroupProtectionSegmentMember
2,084us-gaap_SupplementaryInsuranceInformationPremiumRevenue
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_GroupProtectionSegmentMember
1,919us-gaap_SupplementaryInsuranceInformationPremiumRevenue
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_GroupProtectionSegmentMember
Net Investment Income 180us-gaap_SupplementaryInsuranceInformationNetInvestmentIncome
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_GroupProtectionSegmentMember
165us-gaap_SupplementaryInsuranceInformationNetInvestmentIncome
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_GroupProtectionSegmentMember
162us-gaap_SupplementaryInsuranceInformationNetInvestmentIncome
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_GroupProtectionSegmentMember
Benefits and Interest Credited 1,778us-gaap_SupplementaryInsuranceInformationBenefitsClaimsLossesAndSettlementExpense
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_GroupProtectionSegmentMember
1,562us-gaap_SupplementaryInsuranceInformationBenefitsClaimsLossesAndSettlementExpense
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_GroupProtectionSegmentMember
1,447us-gaap_SupplementaryInsuranceInformationBenefitsClaimsLossesAndSettlementExpense
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_GroupProtectionSegmentMember
Amortization of DAC and VOBA 57lnc_AmortizationOfDacAndVobaNetOfInterestTotal
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_GroupProtectionSegmentMember
53lnc_AmortizationOfDacAndVobaNetOfInterestTotal
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_GroupProtectionSegmentMember
48lnc_AmortizationOfDacAndVobaNetOfInterestTotal
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_GroupProtectionSegmentMember
Other Operating Expenses 574us-gaap_SupplementaryInsuranceInformationOtherOperatingExpense
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_GroupProtectionSegmentMember
537us-gaap_SupplementaryInsuranceInformationOtherOperatingExpense
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_GroupProtectionSegmentMember
485us-gaap_SupplementaryInsuranceInformationOtherOperatingExpense
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_GroupProtectionSegmentMember
Other Operations [Member]      
Supplementary Insurance Information, by Segment [Line Items]      
Future Contract Benefits 5,890us-gaap_SupplementaryInsuranceInformationLiabilityForFuturePolicyBenefitsLossesClaimsAndLossExpenseReserves
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_OtherOperationsMember
6,022us-gaap_SupplementaryInsuranceInformationLiabilityForFuturePolicyBenefitsLossesClaimsAndLossExpenseReserves
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_OtherOperationsMember
6,379us-gaap_SupplementaryInsuranceInformationLiabilityForFuturePolicyBenefitsLossesClaimsAndLossExpenseReserves
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_OtherOperationsMember
Other Contract Holder Funds 756us-gaap_SupplementaryInsuranceInformationOtherPolicyClaimsAndBenefitsPayable
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_OtherOperationsMember
772us-gaap_SupplementaryInsuranceInformationOtherPolicyClaimsAndBenefitsPayable
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_OtherOperationsMember
810us-gaap_SupplementaryInsuranceInformationOtherPolicyClaimsAndBenefitsPayable
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_OtherOperationsMember
Insurance Premiums 5us-gaap_SupplementaryInsuranceInformationPremiumRevenue
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_OtherOperationsMember
1us-gaap_SupplementaryInsuranceInformationPremiumRevenue
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_OtherOperationsMember
4us-gaap_SupplementaryInsuranceInformationPremiumRevenue
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_OtherOperationsMember
Net Investment Income 285us-gaap_SupplementaryInsuranceInformationNetInvestmentIncome
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_OtherOperationsMember
266us-gaap_SupplementaryInsuranceInformationNetInvestmentIncome
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_OtherOperationsMember
259us-gaap_SupplementaryInsuranceInformationNetInvestmentIncome
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_OtherOperationsMember
Benefits and Interest Credited 217us-gaap_SupplementaryInsuranceInformationBenefitsClaimsLossesAndSettlementExpense
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_OtherOperationsMember
222us-gaap_SupplementaryInsuranceInformationBenefitsClaimsLossesAndSettlementExpense
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_OtherOperationsMember
260us-gaap_SupplementaryInsuranceInformationBenefitsClaimsLossesAndSettlementExpense
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_OtherOperationsMember
Other Operating Expenses $ 380us-gaap_SupplementaryInsuranceInformationOtherOperatingExpense
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_OtherOperationsMember
$ 387us-gaap_SupplementaryInsuranceInformationOtherOperatingExpense
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_OtherOperationsMember
$ 432us-gaap_SupplementaryInsuranceInformationOtherOperatingExpense
/ us-gaap_StatementBusinessSegmentsAxis
= lnc_OtherOperationsMember