Adoption of ASU 2018-12 (Summary of Effect on Previously Reported Consolidated Statements of Stockholders Equity) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2020
Balance			$ 8,604
Net income (loss)	$ 315	$ (2,292)	(1,569)	$ (2,074)
Other comprehensive income (loss), net of tax	(3,306)	(4,542)	603	(16,560)
Balance	7,318	6,884	7,318	6,884
Retained Earnings (Deficit) [Member]
Balance	(730)	3,647	1,414	3,734
Net income (loss)	315	(2,292)	(1,569)	(2,074)
Balance	(520)	1,080	(520)	1,080
Accumulated Other Comprehensive Income (Loss) [Member]
Balance	(1,804)	(1,768)	(5,713)	10,250
Other comprehensive income (loss), net of tax	(3,306)	(4,542)	603	(16,560)
Balance	$ (5,110)	(6,310)	(5,110)	(6,310)
Accounting Standards Update 2018-12 [Member]
Balance		6,884		6,884
Accounting Standards Update 2018-12 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Capital contribution from Lincoln National Corporation					$ 3,002
Accounting Standards Update 2018-12 [Member] | Retained Earnings (Deficit) [Member]
Balance				3,734
Net income (loss)				(2,074)
Balance		1,080		1,080
Accounting Standards Update 2018-12 [Member] | Retained Earnings (Deficit) [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Capital contribution from Lincoln National Corporation					(1,820)
Accounting Standards Update 2018-12 [Member] | Accumulated Other Comprehensive Income (Loss) [Member]
Balance				10,250
Other comprehensive income (loss), net of tax				(16,560)
Balance		(6,310)		(6,310)
Accounting Standards Update 2018-12 [Member] | Accumulated Other Comprehensive Income (Loss) [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Capital contribution from Lincoln National Corporation					$ 4,822
Accounting Standards Update 2018-12 [Member] | As Previously Reported [Member]
Balance			8,266
Net income (loss)		(2,289)		(1,388)
Other comprehensive income (loss), net of tax		(4,140)		(14,577)
Balance		6,479		6,479
Accounting Standards Update 2018-12 [Member] | As Previously Reported [Member] | Retained Earnings (Deficit) [Member]
Balance		4,962		4,366
Net income (loss)		(2,289)		(1,388)
Balance		2,398		2,398
Accounting Standards Update 2018-12 [Member] | As Previously Reported [Member] | Accumulated Other Comprehensive Income (Loss) [Member]
Balance		(3,893)		6,544
Other comprehensive income (loss), net of tax		(4,140)		(14,577)
Balance		(8,033)		(8,033)
Accounting Standards Update 2018-12 [Member] | Restatement Impacts [Member]
Balance			$ 338
Net income (loss)		(3)		(686)
Other comprehensive income (loss), net of tax		(402)		(1,983)
Balance		405		405
Accounting Standards Update 2018-12 [Member] | Restatement Impacts [Member] | Retained Earnings (Deficit) [Member]
Balance		(1,315)		(632)
Net income (loss)		(3)		(686)
Balance		(1,318)		(1,318)
Accounting Standards Update 2018-12 [Member] | Restatement Impacts [Member] | Accumulated Other Comprehensive Income (Loss) [Member]
Balance		2,125		3,706
Other comprehensive income (loss), net of tax		(402)		(1,983)
Balance		$ 1,723		$ 1,723