Consolidated Statements Of Stockholder's Equity - USD ($) $ in Millions	Common Stock [Member]	Retained Earnings [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance as of beginning-of-period at Dec. 31, 2019	$ 11,312		$ 4,437	$ 5,836
Capital contribution from Lincoln National Corporation	475
Stock compensation/issued for benefit plans	12
Net income (loss)			358		$ 358
Dividends paid to Lincoln National Corporation			(406)
Other comprehensive income (loss), net of tax				1,979	1,979
Balance as of end-of-period at Jun. 30, 2020	11,799	$ (201)	4,188	7,815	23,802
Balance as of beginning-of-period at Mar. 31, 2020	11,791		4,433	3,773
Stock compensation/issued for benefit plans	8
Net income (loss)			(145)		(145)
Dividends paid to Lincoln National Corporation			(100)
Other comprehensive income (loss), net of tax				4,042	4,042
Balance as of end-of-period at Jun. 30, 2020	11,799	$ (201)	4,188	7,815	23,802
Balance as of beginning-of-period at Dec. 31, 2020	11,853		4,167	9,021	25,041
Capital contribution from Lincoln National Corporation	65
Stock compensation/issued for benefit plans	12
Net income (loss)			926		926
Dividends paid to Lincoln National Corporation			(495)
Other comprehensive income (loss), net of tax				(1,460)	(1,460)
Balance as of end-of-period at Jun. 30, 2021	11,930		4,598	7,561	24,089
Balance as of beginning-of-period at Mar. 31, 2021	11,919		4,451	5,840
Stock compensation/issued for benefit plans	11
Net income (loss)			462		462
Dividends paid to Lincoln National Corporation			(315)
Other comprehensive income (loss), net of tax				1,721	1,721
Balance as of end-of-period at Jun. 30, 2021	$ 11,930		$ 4,598	$ 7,561	$ 24,089