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v3.24.1.u1

DAC, VOBA, DSI, and DFEL - DFEL (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023
Changes in DFEL [Roll Forward] |  |  |
Balance as of beginning-of-year | $ 5,901 |  |
Amortization | (74) | $ (68) |
Balance as of end-of-period | 6,099 |  |
UL and Other |  |  |
Changes in DFEL [Roll Forward] |  |  |
Balance as of beginning-of-year | 5,579 | 4,766 |
Deferrals | 267 | 261 |
Amortization | (68) | (61) |
Balance as of end-of-period | 5,778 | 4,966 |
Less: ceded DFEL | 258 | 0 | $ 257
Balance as of end-of-period, net of reinsurance | 5,520 | 4,966 |
Variable Annuities |  |  |
Changes in DFEL [Roll Forward] |  |  |
Balance as of beginning-of-year | 278 | 286 |
Deferrals | 5 | 5 |
Amortization | (6) | (7) |
Balance as of end-of-period | 277 | 284 |
Less: ceded DFEL | 0 | 0 |
Balance as of end-of-period, net of reinsurance | $ 277 | $ 284 |

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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: |