XML 105 R93.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Segment Information (Reconciliation Of Income (Loss) From Operations By Segment To Consolidated Net Income (Loss)) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017
Reconciliation of Net Income (Loss) from Segments to Consolidated [Abstract] |  |  |  |
Acquisition and integration costs related to mergers and acquisitions, after tax | $ (44) |  | $ (50) |
Net income (loss) | 385 | $ 411 | 752 | $ 846
Segment Reconciling Items [Member] |  |  |  |
Reconciliation of Net Income (Loss) from Segments to Consolidated [Abstract] |  |  |  |
Excluded realized gain (loss), after-tax | (41) | (34) | (69) | (85)
Gain (loss) on early extinguishment of debt, after-tax |  |  | (19) |
Benefit ratio unlocking, after-tax | 7 | 26 | (3) | 71
Net impact from the Tax Cuts and Jobs Act |  |  | (13) |
Acquisition and integration costs related to mergers and acquisitions, after tax | (35) |  | (39) |
Annuities Segment [Member] |  |  |  |
Reconciliation of Net Income (Loss) from Segments to Consolidated [Abstract] |  |  |  |
Net income (loss) | 275 | 251 | 542 | 532
Retirement Plan Services Segment [Member] |  |  |  |
Reconciliation of Net Income (Loss) from Segments to Consolidated [Abstract] |  |  |  |
Net income (loss) | 43 | 37 | 86 | 74
Life Insurance Segment [Member] |  |  |  |
Reconciliation of Net Income (Loss) from Segments to Consolidated [Abstract] |  |  |  |
Net income (loss) | 150 | 133 | 294 | 263
Group Protection Segment [Member] |  |  |  |
Reconciliation of Net Income (Loss) from Segments to Consolidated [Abstract] |  |  |  |
Net income (loss) | 45 | 35 | 74 | 42
Other Operations [Member] |  |  |  |
Reconciliation of Net Income (Loss) from Segments to Consolidated [Abstract] |  |  |  |
Net income (loss) | $ (59) | $ (37) | $ (101) | $ (51)

X
- Definition Benefit ratio unlocking + References No definition available. + Details
Name: | lnc_BenefitRatioUnlocking
Namespace Prefix: | lnc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Excluded realized gain (loss), after-tax + References No definition available. + Details
Name: | lnc_ExcludedRealizedGainLossAfterTax
Namespace Prefix: | lnc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

X
- Definition Amount of income tax expense (benefit) from effect of Tax Cuts and Jobs Act. + References No definition available. + Details
Name: | lnc_TaxCutsAndJobsActOf2017IncomeTaxExpenseBenefit
Namespace Prefix: | lnc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=84229725&loc=d3e1043-128460 + Details
Name: | us-gaap_BusinessCombinationAcquisitionRelatedCosts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12317-112629 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12355-112629 + Details
Name: | us-gaap_GainsLossesOnExtinguishmentOfDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(22)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(18)) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 5: 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(20)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
Name: | us-gaap_NetIncomeLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_ConsolidationItemsAxis=us-gaap_MaterialReconcilingItemsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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: |