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v3.25.1

DAC, VOBA, DSI, and DFEL - DFEL (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Changes in DFEL [Roll Forward] |  |
Balance as of beginning-of-year | $ 6,730 |
Amortization | (104) | $ (74)
Balance as of end-of-period | 6,910 |
UL and Other |  |
Changes in DFEL [Roll Forward] |  |
Balance as of beginning-of-year | 6,406 | 5,579
Deferrals | 279 | 267
Amortization | (98) | (68)
Balance as of end-of-period | 6,587 | 5,778
Less: Ceded DFEL | 237 | 258
Balance as of end-of-period, net of reinsurance | 6,350 | 5,520
Variable Annuities |  |
Changes in DFEL [Roll Forward] |  |
Balance as of beginning-of-year | 273 | 278
Deferrals | 3 | 5
Amortization | (6) | (6)
Balance as of end-of-period | 270 | 277
Less: Ceded DFEL | 0 | 0
Balance as of end-of-period, net of reinsurance | $ 270 | $ 277

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- Definition Ceded Deferred Front End Loads + References No definition available. + Details
Name: | lnc_CededDeferredFrontEndLoads
Namespace Prefix: | lnc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition The unamortized carrying amount of deferred front end loads as of the balance sheet date. + References No definition available. + Details
Name: | lnc_DeferredFrontEndLoads
Namespace Prefix: | lnc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition The amount of deferred front end loads capitalized during the period. + References No definition available. + Details
Name: | lnc_DeferredFrontEndLoadsAdditions
Namespace Prefix: | lnc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition The amount of other amortization of deferred front end loads, net of interest, during the period. + References No definition available. + Details
Name: | lnc_DeferredFrontEndLoadsAmortizationExpenseOtherAmortizationNetOfInterest
Namespace Prefix: | lnc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Deferred Front End Loads, Net + References No definition available. + Details
Name: | lnc_DeferredFrontEndLoadsNet
Namespace Prefix: | lnc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | lnc_MovementInDeferredFrontEndLoadsRollForward
Namespace Prefix: | lnc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=lnc_ULAndOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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