XML 79 R71.htm IDEA: XBRL DOCUMENT
v3.20.1

Guaranteed Benefit Features (Account Balances Of Variable Annuity Contracts With Guarantees Invested In Separate Accounts) (Details) - Variable Annuity [Member] - USD ($) $ in Millions | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Account Balances Of Variable Annuity Contracts With Guarantees Invested In Separate Accounts [Line Items] |  |
Total | $ 106,974 | $ 125,350
Percent of total variable annuity separate account values | 98.00% | 98.00%
Domestic Equity [Member] |  |
Account Balances Of Variable Annuity Contracts With Guarantees Invested In Separate Accounts [Line Items] |  |
Total | $ 52,454 | $ 64,093
International Equity [Member] |  |
Account Balances Of Variable Annuity Contracts With Guarantees Invested In Separate Accounts [Line Items] |  |
Total | 15,998 | 19,852
Fixed Income [Member] |  |
Account Balances Of Variable Annuity Contracts With Guarantees Invested In Separate Accounts [Line Items] |  |
Total | $ 38,522 | $ 41,405

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

X
- Definition Separate account values of variable annuity contracts with guarantees as a percentage of total variable annuity separate account values + References No definition available. + Details
Name: | lnc_PercentOfTotalVariableAnnuitySeparateAccountValues
Namespace Prefix: | lnc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Value of the separate accounts corresponding to the specified product, guarantee type and subset of the guarantee. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 80 -Section 50 -Paragraph 1 -Subparagraph ((d)(1)) -URI http://asc.fasb.org/extlink&oid=117420044&loc=d3e19393-158473 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 20 -Section 55 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=117418410&loc=d3e7104-158389 + Details
Name: | us-gaap_NetAmountAtRiskByProductAndGuaranteeSeparateAccountValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | srt_ProductOrServiceAxis=us-gaap_VariableAnnuityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=lnc_DomesticEquityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=lnc_InternationalEquityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=us-gaap_FixedIncomeSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |