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Derivative Instruments (Schedule Of Collateral Amounts With Rights To Reclaim Or Obligation To Return Cash) (Details) - USD ($) $ in Millions | Mar. 31, 2022 | Dec. 31, 2021
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Credit Derivatives [Line Items] |  |
Collateral Posted by Counter-Party (Held by LNC) | $ 4,789 | $ 5,574
Collateral Posted by LNC (Held by Counter-Party) | (481) | (721)
AA- [Member] |  |
Credit Derivatives [Line Items] |  |
Collateral Posted by Counter-Party (Held by LNC) | 2,126 | 2,346
Collateral Posted by LNC (Held by Counter-Party) | (168) | (281)
A+ [Member] |  |
Credit Derivatives [Line Items] |  |
Collateral Posted by Counter-Party (Held by LNC) | 2,384 | 2,772
Collateral Posted by LNC (Held by Counter-Party) | (205) | (251)
A [Member] |  |
Credit Derivatives [Line Items] |  |
Collateral Posted by Counter-Party (Held by LNC) | 279 | 456
Collateral Posted by LNC (Held by Counter-Party) | (108) | (189)
A- [Member] |  |
Credit Derivatives [Line Items] |  |
Collateral Posted by Counter-Party (Held by LNC) |  |
Collateral Posted by LNC (Held by Counter-Party) |  |

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