XML 132 R148.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Statutory Information and Restrictions (Effects on statutory surplus compared to NAIC statutory surplus) (Details) - USD ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Calculation of reserves using the Indiana universal life method [Member] |  |  |
Statutory Accounting Practices [Line Items] |  |  |
Effects on statutory surplus compared to NAIC statutory surplus from the use of prescribed and permitted practices |  | $ 24 | $ 36
Conservative valuation rate on certain variable annuities [Member] |  |  |
Statutory Accounting Practices [Line Items] |  |  |
Effects on statutory surplus compared to NAIC statutory surplus from the use of prescribed and permitted practices |  | (49) | (55)
Lesser of LOC and XXX additional reserve as surplus [Member] |  |  |
Statutory Accounting Practices [Line Items] |  |  |
Effects on statutory surplus compared to NAIC statutory surplus from the use of prescribed and permitted practices | [1] | 1,947 | 1,959
LLC Notes And Variable Value Surplus Notes [Member] |  |  |
Statutory Accounting Practices [Line Items] |  |  |
Effects on statutory surplus compared to NAIC statutory surplus from the use of prescribed and permitted practices | [1] | 1,648 | 1,634
Excess Of Loss Reinsurance Treaties [Member] |  |  |
Statutory Accounting Practices [Line Items] |  |  |
Effects on statutory surplus compared to NAIC statutory surplus from the use of prescribed and permitted practices | [1] | $ 419 | $ 330
[1] | These permitted practices are related to structures that continue to be allowed in accordance with the grandfathered structures under the provisions of AG48 or are compliant under AG48 requirements.

X
- Definition Amount of an item which resulted in a difference from applying state prescribed or permitted statutory accounting practices rather than statutory accounting practices prescribed by National Association of Insurance Commissioners. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 505 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6486098&loc=d3e24746-158529 + Details
Name: | us-gaap_StateInsuranceDepartmentStatutoryToNAICAmountOfReconcilingItem
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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_StatutoryAccountingPracticesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StatutoryAccountingPracticesByJurisdictionAxis=lnc_CalculationOfReservesUsingIndianaUniversalLifeMethodMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatutoryAccountingPracticesByJurisdictionAxis=lnc_StatutoryAccountingPracticesConservativeValuationRateOnCertainVariableAnnuitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatutoryAccountingPracticesByJurisdictionAxis=lnc_StatutoryAccountingPracticesLesserOfLocAndXxxAdditionalReserveAsSurplusMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatutoryAccountingPracticesByJurisdictionAxis=lnc_LlcNotesAndVariableValueSurplusNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatutoryAccountingPracticesByJurisdictionAxis=lnc_ExcessOfLossReinsuranceTreatiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |