XML 86 R75.htm IDEA: XBRL DOCUMENT
v3.20.2

Debt (Narrative) (Details) - Delaware Trust Facility [Member] | 9 Months Ended
--- | ---
Sep. 30, 2020 USD ($)
Debt Instrument [Line Items] |
Facility agreement term | 10 years
Pre-capitalized securities, sold by trust | $ 500,000,000
Facility fee rate | 1.691%
Stockholders' equity threshold triggering required facility exercise | $ 2,750,000,000
Potential Issuance In Exchange For US Treasury Securities [Member] | Senior Notes 2.330%, Due 2030 [Member] |
Debt Instrument [Line Items] |
Principal balance | $ 500,000,000
Interest rate | 2.33%

X
- Definition Facility Agreement Term + References No definition available. + Details
Name: | lnc_FacilityAgreementTerm
Namespace Prefix: | lnc_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Pre-capitalized securities, sold by trust + References No definition available. + Details
Name: | lnc_PreCapitalizedSecuritiesSoldByTrust
Namespace Prefix: | lnc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Stockholders' equity threshold triggering required facility exercise + References No definition available. + Details
Name: | lnc_StockholdersEquityThresholdTriggeringRequiredFacilityExercise
Namespace Prefix: | lnc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
Name: | us-gaap_DebtInstrumentFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
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_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used. + References No definition available. + Details
Name: | us-gaap_LineOfCreditFacilityCommitmentFeePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_LineOfCreditFacilityAxis=lnc_DelawareTrustFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementScenarioAxis=lnc_PotentialIssuanceInExchangeForUsTreasurySecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=lnc_SeniorNotes2.330Due2030Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |