Commissions, general and administrative, and taxes, licenses and fees expense related to broker dealers.

No definition available.

Name:	lnc_BrokerDealerExpenses
Namespace Prefix:	lnc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Additions during the period in capitalized costs that are directly related to the successful acquisition of new and renewal insurance contracts and coverages and value of business acquired, including interest, net of the amount of DAC and VOBA that was amortized during the period, generally in proportion to related revenue earned, estimated gross profits, or over the customer relationship or some other period.

+ References

No definition available.

+ Details

Name:	lnc_DacAndVobaDeferralsAndInterestNetOfAmortization
Namespace Prefix:	lnc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Details underlying commissions and other expenses [Abstract]

+ References

No definition available.

+ Details

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Namespace Prefix:	lnc_
Data Type:	xbrli:stringItemType
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- Definition

This item represents merger-related expenses that were the result of actions undertaken by the entity to eliminate duplicate operations and functions as a result of a merger along with costs related to the implementation of a new unified product portfolio and other initiatives.

+ References

No definition available.

+ Details

Name:	lnc_MergerRelatedExpenses
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The aggregate expense charged against earnings to allocate the cost of other intangible assets not otherwise specified in the taxonomy (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets.

+ References

No definition available.

+ Details

Name:	lnc_OtherIntangiblesAmortization
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Expenses associated with reserve financing supporting secondary guarantee UL and term business, and expenses for unrelated letters of credit.

+ References

No definition available.

+ Details

Name:	lnc_ReserveFinancingExpenses
Namespace Prefix:	lnc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of tax incurred and cost of license directly related to good produced or service rendered.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(b)(2))
-URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227

+ Details

Name:	us-gaap_DirectTaxesAndLicensesCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.4)
-URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227

+ Details

Name:	us-gaap_GeneralAndAdministrativeExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The expense incurred by an insurance company to persons or entities for generating or placing insurance or investment contracts with the company, usually determined as a percentage of policy or contract premiums. Excludes advances or draws to be applied against commissions earned.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.7(a))
-URI https://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The total amount of other operating cost and expense items that are associated with the entity's normal revenue producing operation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.3)
-URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227

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Commissions and Other Expenses (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Details underlying commissions and other expenses [Abstract]
Commissions									$ 2,190	$ 2,223	$ 2,183
General and administrative expenses									2,241	2,251	2,072
Expenses associated with reserve financing and unrelated LOCs									108	102	94
DAC and VOBA deferrals and interest, net of amortization									(358)	258	(156)
Broker-dealer expenses									536	570	493
Specifically identifiable intangible asset amortization									37	37	37
Taxes, licenses and fees									342	339	321
Acquisition and integration costs related to mergers and acquisitions										14	20
Total	$ 1,382	$ 1,355	$ 1,123	$ 1,235	$ 1,330	$ 1,908	$ 1,325	$ 1,231	$ 5,096	$ 5,794	$ 5,064