Nature of Operations, Basis of Presentation and Summary of Significant Accounting Policies (Summary of Restated Consolidated Statments of Stockholder's Equity) (Details) - USD ($) $ in Millions	3 Months Ended								6 Months Ended		9 Months Ended		12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Balance	$ 6,479	$ 13,089	$ 18,300	$ 22,860	$ 23,548	$ 24,086	$ 22,203	$ 25,041	$ 22,860	$ 25,041	$ 22,860	$ 25,041	$ 22,860	$ 25,041
Net income (loss)	105	(2,289)	443	458	816	369	466	457	900	923	(1,389)	1,292	(1,285)	2,109	$ 591
Other comprehensive income (loss), net of tax	960	(4,140)	(5,446)	(4,991)	(400)	(617)	1,721	(3,181)					(13,617)	(2,477)	3,185
Balance	8,266	6,479	13,089	18,300	22,860	23,548	24,086	22,203	13,089	24,086	6,479	23,548	8,266	22,860	25,041
Common Stock [Member]
Balance	12,114	12,020	11,948	11,950	11,940	11,930	11,919	11,853	11,950	11,853	11,950	11,853	11,950	11,853	11,312
Capital contribution from Lincoln National Corporation		80	65					65					925	65	510
Stock compensation/issued for benefit plans		14	7	(2)		10	11	1					28	32	31
Balance	12,903	12,114	12,020	11,948	11,950	11,940	11,930	11,919	12,020	11,930	12,114	11,940	12,903	11,950	11,853
Retained Earnings [Member]
Balance	2,398	4,962	4,799	4,366	4,664	4,595	4,444	4,167	4,366	4,167	4,366	4,167	4,366	4,167	4,437
Net income (loss)		(2,289)	443	458		369	466	457					(1,285)	2,109	591
Dividends paid to Lincoln National Corporation		(275)	(280)	(25)		(300)	(315)	(180)					(645)	(1,910)	(660)
Balance	2,436	2,398	4,962	4,799	4,366	4,664	4,595	4,444	4,962	4,595	2,398	4,664	2,436	4,366	4,167
Retained Earnings [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance															(201)
Accumulated Other Comprehensive Income (Loss) [Member]
Balance	(8,033)	(3,893)	1,553	6,544	6,944	7,561	5,840	9,021	6,544	9,021	6,544	9,021	6,544	9,021	5,836
Other comprehensive income (loss), net of tax		(4,140)	(5,446)	(4,991)		(617)	1,721	(3,181)					(13,617)	(2,477)	3,185
Balance	(7,073)	(8,033)	(3,893)	1,553	6,544	6,944	7,561	5,840	(3,893)	7,561	(8,033)	6,944	(7,073)	6,544	9,021
As Previously Reported [Member]
Balance	6,025	12,627	17,829	22,380	23,554	24,089	22,210		22,380		22,380		22,380
Net income (loss)	89	(2,287)	456	469	331	372	462	464	925	926	(1,362)	1,298	(1,273)	1,629
Other comprehensive income (loss), net of tax	960	(4,134)	(5,450)	(4,993)	(400)	(617)	1,721	(3,181)					(13,617)	(2,477)
Balance	7,798	6,025	12,627	17,829	22,380	23,554	24,089	22,210	12,627	24,089	6,025	23,554	7,798	22,380
As Previously Reported [Member] | Common Stock [Member]
Balance	12,114	12,020	11,948	11,950	11,940	11,930	11,919	11,853	11,950	11,853	11,950	11,853	11,950	11,853
Capital contribution from Lincoln National Corporation		80	65					65					925	65
Stock compensation/issued for benefit plans		14	7	(2)		10	11	1					28	32
Balance	12,903	12,114	12,020	11,948	11,950	11,940	11,930	11,919	12,020	11,930	12,114	11,940	12,903	11,950	11,853
As Previously Reported [Member] | Retained Earnings [Member]
Balance	1,944	4,506	4,330	3,886	4,670	4,598	4,451	4,167	3,886	4,167	3,886	4,167	3,886	4,167
Net income (loss)		(2,287)	456	469		372	462	464					(1,273)	1,629
Dividends paid to Lincoln National Corporation		(275)	(280)	(25)		(300)	(315)	(180)					(645)	(1,910)
Balance	1,968	1,944	4,506	4,330	3,886	4,670	4,598	4,451	4,506	4,598	1,944	4,670	1,968	3,886	4,167
As Previously Reported [Member] | Accumulated Other Comprehensive Income (Loss) [Member]
Balance	(8,033)	(3,899)	1,551	6,544	6,944	7,561	5,840	9,021	6,544	9,021	6,544	9,021	6,544	9,021
Other comprehensive income (loss), net of tax		(4,134)	(5,450)	(4,993)		(617)	1,721	(3,181)					(13,617)	(2,477)
Balance	(7,073)	(8,033)	(3,899)	1,551	6,544	6,944	7,561	5,840	(3,899)	7,561	(8,033)	6,944	(7,073)	6,544	$ 9,021
Restatement Impacts [Member]
Balance	454	462	471	480	(6)	(3)	(7)		480		480		480
Net income (loss)	16	(2)	(13)	(11)	485	(3)	4	(7)	(25)	(3)	(27)	(6)	(12)	480
Other comprehensive income (loss), net of tax		(6)	4	2
Balance	468	454	462	471	480	(6)	(3)	(7)	462	(3)	454	(6)	468	480
Restatement Impacts [Member] | Retained Earnings [Member]
Balance	454	456	469	480	(6)	(3)	(7)		480		480		480
Net income (loss)		(2)	(13)	(11)		(3)	4	(7)					(12)	480
Balance	$ 468	454	456	469	$ 480	$ (6)	$ (3)	$ (7)	456	$ (3)	$ 454	$ (6)	$ 468	$ 480
Restatement Impacts [Member] | Accumulated Other Comprehensive Income (Loss) [Member]
Balance		6	2
Other comprehensive income (loss), net of tax		$ (6)	4	2
Balance			$ 6	$ 2					$ 6