XML 76 R63.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Guaranteed Benefit Features (Information On Guaranteed Death Benefit Features) (Details) - USD ($) $ in Millions | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2017 | Dec. 31, 2016
Return of Net Deposits [Member] |  |  |
Net Amount at Risk by Product and Guarantee [Line Items] |  |  |
Total Account Value | [1] | $ 92,182 | $ 87,707
Net Amount At Risk | [1],[2] | $ 179 | $ 824
Average attained age of contract holders | [1] | 64 years | 63 years
Minimum Return [Member] |  |  |
Net Amount at Risk by Product and Guarantee [Line Items] |  |  |
Total Account Value | [1] | $ 107 | $ 105
Net Amount At Risk | [1],[2] | $ 19 | $ 22
Average attained age of contract holders | [1] | 76 years | 75 years
Guaranteed minimum return | [1] | 5.00% | 5.00%
Anniversary Contract Value [Member] |  |  |
Net Amount at Risk by Product and Guarantee [Line Items] |  |  |
Total Account Value | [1] | $ 25,666 | $ 24,605
Net Amount At Risk | [1],[2] | $ 482 | $ 782
Average attained age of contract holders | [1] | 70 years | 69 years
[1] | Our variable contracts with guarantees may offer more than one type of guarantee in each contract; therefore, the amounts listed are not mutually exclusive.
[2] | Represents the amount of death benefit in excess of the account balance that is subject to market fluctuations.

X
- Definition Describes the guaranteed minimum return rates, in percentages. + References No definition available. + Details
Name: | lnc_GuaranteedMinimumReturn
Namespace Prefix: | lnc_
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_NetAmountAtRiskByProductAndGuaranteeLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Net amount at risk, representing the guaranteed benefit in excess of the current account balance corresponding to the specified product, guarantee type and subset of the guarantee. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 80 -Section 50 -Paragraph 1 -Subparagraph (d)(3),(5) -URI http://asc.fasb.org/extlink&oid=6484115&loc=d3e19393-158473 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 20 -Section 55 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=6588021&loc=d3e7104-158389 + Details
Name: | us-gaap_NetAmountAtRiskByProductAndGuaranteeNetAmountAtRisk
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 80 -Section 50 -Paragraph 1 -Subparagraph ((d)(1)) -URI http://asc.fasb.org/extlink&oid=6484115&loc=d3e19393-158473 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 20 -Section 55 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=6588021&loc=d3e7104-158389 + Details
Name: | us-gaap_NetAmountAtRiskByProductAndGuaranteeSeparateAccountValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Weighted average attained age of policyholders or contract holders in the specified guarantee type and subset of guarantee class, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 80 -Section 50 -Paragraph 1 -Subparagraph ((d)(5)) -URI http://asc.fasb.org/extlink&oid=6484115&loc=d3e19393-158473 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 20 -Section 55 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=6588021&loc=d3e7104-158389 + Details
Name: | us-gaap_NetAmountAtRiskByProductAndGuaranteeWeightedAverageAttainedAge1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_GuaranteedInsuranceContractTypeOfGuaranteeAxis=lnc_ReturnOfNetDepositsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_GuaranteedInsuranceContractTypeOfGuaranteeAxis=lnc_MinimumReturnMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_GuaranteedInsuranceContractTypeOfGuaranteeAxis=lnc_AnniversaryContractValueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |