XML 50 R38.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Acquisition (Schedule Of Fair Value Of Identifiable Intangible Assets Acquired) (Details) $ in Millions | 9 Months Ended
--- | ---
Sep. 30, 2018 USD ($)
Schedule Of Intangibles Acquired [Line Items] |
Total identifiable intangible assets | $ 640
Insurance Licenses [Member] |
Schedule Of Intangibles Acquired [Line Items] |
Indefinite intangibles acquired | 3
Customer Relationships [Member] |
Schedule Of Intangibles Acquired [Line Items] |
Finite intangibles acquired | $ 576
Weighted Average Amortization Period | 20 years
Distribution Agreements [Member] |
Schedule Of Intangibles Acquired [Line Items] |
Finite intangibles acquired | $ 31
Weighted Average Amortization Period | 13 years
Business Acquired [Member] |
Schedule Of Intangibles Acquired [Line Items] |
Finite intangibles acquired | $ 30
Weighted Average Amortization Period | 3 years

X
- Definition Intangible assets acquired + References No definition available. + Details
Name: | lnc_IntangibleAssetsAcquired
Namespace Prefix: | lnc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Schedule Of Intangibles Acquired [Line Items] + References No definition available. + Details
Name: | lnc_ScheduleOfIntangiblesAcquiredLineItems
Namespace Prefix: | lnc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
Name: | us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
Name: | us-gaap_FinitelivedIntangibleAssetsAcquired1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of increase in assets, excluding financial assets and goodwill, lacking physical substance with an indefinite life, from an acquisition. + References No definition available. + Details
Name: | us-gaap_IndefinitelivedIntangibleAssetsAcquired
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_LicensingAgreementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_CustomerRelationshipsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_DistributionRightsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_IntangibleAssetsArisingFromInsuranceContractsAcquiredInBusinessCombinationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |