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v3.24.3

DAC, VOBA, DSI, and DFEL - DFEL (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2023
Changes in DFEL [Roll Forward] |  |  |  |  |
Balance as of beginning-of-year |  |  | $ 5,901 |  |
Amortization | $ (79) | $ (74) | (230) | $ (213) |
Balance as of end-of-period | 6,517 |  | 6,517 |  |
UL and Other |  |  |  |  |
Changes in DFEL [Roll Forward] |  |  |  |  |
Balance as of beginning-of-year |  |  | 5,579 | 4,766 |
Deferrals |  |  | 826 | 800 |
Amortization |  |  | (212) | (193) |
Balance as of end-of-period | 6,193 | 5,373 | 6,193 | 5,373 |
Less: ceded DFEL | 257 | 0 | 257 | 0 | $ 257
Balance as of end-of-period, net of reinsurance | 5,936 | 5,373 | 5,936 | 5,373 |
Variable Annuities |  |  |  |  |
Changes in DFEL [Roll Forward] |  |  |  |  |
Balance as of beginning-of-year |  |  | 278 | 286 |
Deferrals |  |  | 14 | 14 |
Amortization |  |  | (18) | (20) |
Balance as of end-of-period | 274 | 280 | 274 | 280 |
Less: ceded DFEL | 0 | 0 | 0 | 0 |
Balance as of end-of-period, net of reinsurance | $ 274 | $ 280 | $ 274 | $ 280 |

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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
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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
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Namespace Prefix: | lnc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- Definition Deferred Front End Loads, Net + References No definition available. + Details
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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
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Namespace Prefix: | lnc_
Data Type: | xbrli:stringItemType
Balance Type: | na
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- Details
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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: |