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Derivative Instruments (Schedule Of Collateral Amounts With Rights To Reclaim Or Obligation To Return Cash) (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
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Credit Derivatives [Line Items] |  |
Collateral Posted by Counter-Party (Held by LNC) | $ 5,574 | $ 2,976
Collateral Posted by LNC (Held by Counter-Party) | (721) | (1,061)
AA- [Member] |  |
Credit Derivatives [Line Items] |  |
Collateral Posted by Counter-Party (Held by LNC) | 2,346 | 1,233
Collateral Posted by LNC (Held by Counter-Party) | (281) | (371)
A+ [Member] |  |
Credit Derivatives [Line Items] |  |
Collateral Posted by Counter-Party (Held by LNC) | 2,772 | 1,119
Collateral Posted by LNC (Held by Counter-Party) | (251) | (445)
A [Member] |  |
Credit Derivatives [Line Items] |  |
Collateral Posted by Counter-Party (Held by LNC) | 456 | 53
Collateral Posted by LNC (Held by Counter-Party) | (189) |
A- [Member] |  |
Credit Derivatives [Line Items] |  |
Collateral Posted by Counter-Party (Held by LNC) |  | 571
Collateral Posted by LNC (Held by Counter-Party) |  | $ (245)

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