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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
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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