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Derivative Instruments - Schedule of Collateral Amounts With Rights to Reclaim or Obligation to Return Cash (Details) - USD ($) $ in Millions | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Credit Derivatives [Line Items] |  |
Collateral Posted by Counter- Party (Held by LNC) | $ 7,156 | $ 5,229
Collateral Posted by LNC (Held by Counter- Party) | (8) | (188)
AA- |  |
Credit Derivatives [Line Items] |  |
Collateral Posted by Counter- Party (Held by LNC) | 2,604 | 2,378
Collateral Posted by LNC (Held by Counter- Party) | (7) | (63)
A+ |  |
Credit Derivatives [Line Items] |  |
Collateral Posted by Counter- Party (Held by LNC) | 3,791 | 2,496
Collateral Posted by LNC (Held by Counter- Party) | (1) | (125)
A |  |
Credit Derivatives [Line Items] |  |
Collateral Posted by Counter- Party (Held by LNC) | 70 | 82
Collateral Posted by LNC (Held by Counter- Party) | 0 | 0
A- |  |
Credit Derivatives [Line Items] |  |
Collateral Posted by Counter- Party (Held by LNC) | 691 | 273
Collateral Posted by LNC (Held by Counter- Party) | $ 0 | $ 0

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