XML 96 R84.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Segment Information (Reconciliation Of Revenue From Segments To Consolidated) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | $ 3,511 | $ 3,525 | $ 10,588 | $ 10,076
Annuities Segment [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | 1,073 | 1,000 | 3,211 | 3,023
Retirement Plan Services Segment [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | 291 | 282 | 863 | 819
Life Insurance Segment [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | 1,614 | 1,630 | 4,874 | 4,646
Group Protection Segment [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | 564 | 534 | 1,646 | 1,593
Other Operations [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | 65 | 84 | 220 | 244
Excluded realized gain (loss), pre-tax [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | (97) | (7) | (229) | (252)
Amortization of deferred gain arising from reserve changes on business sold through reinsurance, pre-tax [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues |  | 1 | 1 | 2
Amortization Of DFEL Associated With Benefit Ratio Unlocking, Pre-Tax [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | $ 1 | $ 1 | $ 2 | $ 1

X
- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
Name: | us-gaap_Revenues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_SegmentReportingInformationLineItems
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_AmortizationOfDeferredGainArisingFromReserveChangesOnBusinessSoldThroughReinsurancePreTaxMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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