Adoption of ASU 2018-12 (Summary of Effect on Previously Reported Consolidated Statements of Stockholders Equity) (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2020
Balance	$ 8,604
Net income (loss)	(928)	$ 390
Other comprehensive income (loss), net of tax	2,613	(6,522)
Balance	10,203	19,775
Common Stock [Member]
Balance	12,903	11,950
Capital contribution from Lincoln National Corporation	5
Stock compensation/issued for benefit plans	14	(2)
Balance	12,922	11,948
Retained Earnings [Member]
Balance	1,414	3,734
Net income (loss)	(928)	390
Dividends paid to Lincoln National Corporation	(105)	(25)
Balance	381	4,099
Accumulated Other Comprehensive Income (Loss) [Member]
Balance	(5,713)	10,250
Other comprehensive income (loss), net of tax	2,613	(6,522)
Balance	(3,100)	3,728
Accounting Standards Update 2018-12 [Member]
Balance		19,775
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 [Member]
Balance		3,734
Net income (loss)		390
Balance		4,099
Accounting Standards Update 2018-12 [Member] | Retained Earnings [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		(6,522)
Balance		3,728
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)		458
Other comprehensive income (loss), net of tax		(4,991)
Balance		18,300
Accounting Standards Update 2018-12 [Member] | As Previously Reported [Member] | Retained Earnings [Member]
Balance		4,366
Net income (loss)		458
Balance		4,799
Accounting Standards Update 2018-12 [Member] | As Previously Reported [Member] | Accumulated Other Comprehensive Income (Loss) [Member]
Balance		6,544
Other comprehensive income (loss), net of tax		(4,991)
Balance		1,553
Accounting Standards Update 2018-12 [Member] | Restatement Impacts [Member]
Balance	$ 338
Net income (loss)		(68)
Other comprehensive income (loss), net of tax		(1,531)
Balance		1,475
Accounting Standards Update 2018-12 [Member] | Restatement Impacts [Member] | Retained Earnings [Member]
Balance		(632)
Net income (loss)		(68)
Balance		(700)
Accounting Standards Update 2018-12 [Member] | Restatement Impacts [Member] | Accumulated Other Comprehensive Income (Loss) [Member]
Balance		3,706
Other comprehensive income (loss), net of tax		(1,531)
Balance		$ 2,175