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	22
Net income (loss)			31		$ 31
Dividends paid to Lincoln National Corporation			(486)
Other comprehensive income (loss), net of tax				2,339	2,339
Balance as of end-of-period at Sep. 30, 2020	11,809	$ (201)	3,781	8,175	23,765
Balance as of beginning-of-period at Jun. 30, 2020	11,799		4,188	7,815
Stock compensation/issued for benefit plans	10
Net income (loss)			(327)		(327)
Dividends paid to Lincoln National Corporation			(80)
Other comprehensive income (loss), net of tax				360	360
Balance as of end-of-period at Sep. 30, 2020	11,809	$ (201)	3,781	8,175	23,765
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	22
Net income (loss)			1,298		1,298
Dividends paid to Lincoln National Corporation			(795)
Other comprehensive income (loss), net of tax				(2,077)	(2,077)
Balance as of end-of-period at Sep. 30, 2021	11,940		4,670	6,944	23,554
Balance as of beginning-of-period at Jun. 30, 2021	11,930		4,598	7,561
Stock compensation/issued for benefit plans	10
Net income (loss)			372		372
Dividends paid to Lincoln National Corporation			(300)
Other comprehensive income (loss), net of tax				(617)	(617)
Balance as of end-of-period at Sep. 30, 2021	$ 11,940		$ 4,670	$ 6,944	$ 23,554