XML 88 R161.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Segment Information (Reconciliation of Federal Income Tax Expense (Benefit) from Segments to Consolidated Net Income (Loss)) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Reconciliation of Federal Income Tax Expense (Benefit) from Segments to Consolidated [Abstract] |  |  |
Income tax expense (benefit) | $ 33 | $ 244 | $ (949)
Annuities Segment [Member] |  |  |
Reconciliation of Federal Income Tax Expense (Benefit) from Segments to Consolidated [Abstract] |  |  |
Income tax expense (benefit) | 139 | 183 | 199
Retirement Plan Services Segment [Member] |  |  |
Reconciliation of Federal Income Tax Expense (Benefit) from Segments to Consolidated [Abstract] |  |  |
Income tax expense (benefit) | 23 | 29 | 55
Life Insurance Segment [Member] |  |  |
Reconciliation of Federal Income Tax Expense (Benefit) from Segments to Consolidated [Abstract] |  |  |
Income tax expense (benefit) | 47 | 147 | 244
Group Protection Segment [Member] |  |  |
Reconciliation of Federal Income Tax Expense (Benefit) from Segments to Consolidated [Abstract] |  |  |
Income tax expense (benefit) | 63 | 50 | 55
Other Operations [Member] |  |  |
Reconciliation of Federal Income Tax Expense (Benefit) from Segments to Consolidated [Abstract] |  |  |
Income tax expense (benefit) | (92) | (77) | (130)
Excluded realized gain (loss) [Member] |  |  |
Reconciliation of Federal Income Tax Expense (Benefit) from Segments to Consolidated [Abstract] |  |  |
Income tax expense (benefit) | (167) | (9) | (118)
Gain (loss) on early extinguishment of debt [Member] |  |  |
Reconciliation of Federal Income Tax Expense (Benefit) from Segments to Consolidated [Abstract] |  |  |
Income tax expense (benefit) | (9) | (5) | (2)
Benefit ratio unlocking [Member] |  |  |
Reconciliation of Federal Income Tax Expense (Benefit) from Segments to Consolidated [Abstract] |  |  |
Income tax expense (benefit) | 74 | (36) | 70
Net Impact From the Tax Cuts And Jobs Act [Member] |  |  |
Reconciliation of Federal Income Tax Expense (Benefit) from Segments to Consolidated [Abstract] |  |  |
Income tax expense (benefit) | (17) | (19) | $ (1,322)
Acquisition and integration costs related to mergers and acquisitions [Member] |  |  |
Reconciliation of Federal Income Tax Expense (Benefit) from Segments to Consolidated [Abstract] |  |  |
Income tax expense (benefit) | $ (28) | $ (19) |

X
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 20 -Section 45 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109238882&loc=d3e38679-109324 + Details
Name: | us-gaap_IncomeTaxExpenseBenefit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_SegmentReportingOtherSignificantReconcilingItemConsolidatedAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=lnc_AnnuitiesSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=lnc_RetirementPlanServicesSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=lnc_LifeSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=lnc_GroupProtectionSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=lnc_OtherOperationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=lnc_ExcludedRealizedGainLossPreTaxReconcilingItemMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=lnc_GainLossOnEarlyExtinguishmentOfDebtTaxReconcilingItemMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=lnc_BenefitRatioUnlockingTaxReconcilingItemMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=lnc_NetImpactFromTaxCutsAndJobsActMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=lnc_AcquisitionAndIntegrationCostsRelatedToMergersAndAcquisitionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |