Consolidated Statements Of Cash Flows - USD ($) $ in Millions	3 Months Ended		6 Months Ended		9 Months Ended		12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash Flows from Operating Activities
Net income (loss)	$ 458	$ 457	$ 900	$ 923	$ (1,389)	$ 1,292	$ (1,285)	$ 2,109	$ 591
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Realized (gain) loss	(257)	(212)	(327)	(43)	(338)	(11)	(214)	(711)	526
Sales and maturities (purchases) of trading securities, net	(189)	118	109	230	164	239	301	(87)	253
Amortization of deferred gain (loss) on business sold through reinsurance	(10)	(7)	(20)	(14)	(29)	(22)	(37)	(32)	(33)
Impairment of intangibles					634		634
Change in:
Deferred acquisition costs, value of business acquired, deferred sales inducements and deferred front-end loads deferrals and interest, net of amortization	24	50	(10)	106	3	325	45	289	68
Premiums and fees receivable	(91)	(163)	(71)	(98)	(2)	(99)	(53)	(95)	(20)
Accrued investment income	(44)	(51)	(40)	(11)	(77)	(44)	(41)	8	(88)
Insurance liabilities and reinsurance-related balances	299	(263)	81	5	2,311	(301)	1,055	(584)	392
Accrued expenses	(229)	(35)	(340)	35	(375)	200	(98)	370	(21)
Federal income tax accruals	82	97	192	167	(308)	233	(271)	391	(134)
Cash management agreement	872	(182)	2,427	(1,223)	2,803	(1,367)	3,730	(1,286)	(1,341)
Other	(3)	(203)	224	(219)	478	(226)	527	(163)	92
Net cash provided by (used in) operating activities	912	(394)	3,125	(142)	3,875	219	4,293	209	285
Cash Flows from Investing Activities
Purchases of available-for-sale securities and equity securities	(3,910)	(3,803)	(8,090)	(8,212)	(11,961)	(11,776)	(14,768)	(16,856)	(16,149)
Sales of available-for-sale securities and equity securities	105	592	236	1,277	1,231	1,441	2,347	2,341	1,214
Maturities of available-for-sale securities	1,566	1,862	3,165	4,570	4,339	6,897	5,487	9,417	5,180
Purchases of other investments							(631)	(754)	(395)
Sales or maturities of other investments							441	377	171
Purchases of alternative investments	(141)	(163)	(300)	(360)	(453)	(504)
Sales and repayments of alternative investments	130	54	181	128	380	258
Issuance of mortgage loans on real estate	(539)	(868)	(1,366)	(1,609)	(1,924)	(2,188)	(2,507)	(3,057)	(1,790)
Repayment and maturities of mortgage loans on real estate	716	398	1,422	846	1,866	1,267	2,247	1,873	1,133
Repayment (issuance) of policy loans, net	25	(76)	(6)	16	16	47	4	61	49
Net change in collateral on investments, derivatives and related settlements	(242)	987	(2,322)	1,704	(3,667)	2,132	(4,653)	3,095	1,775
Other	(76)	(30)	(93)	(67)	(83)	(181)	(40)	(253)	(149)
Net cash provided by (used in) investing activities	(2,366)	(1,047)	(7,173)	(1,707)	(10,256)	(2,607)	(12,073)	(3,756)	(8,961)
Cash Flows from Financing Activities
Capital contribution from Lincoln National Corporation		65	65	65	145	65	925	65	510
Payment of long-term debt, including current maturities		(60)	(40)	(60)	(40)	(60)	(40)	(60)	(30)
Issuance of long-term debt, net of issuance costs									30
Issuance (payment) of short-term debt	(347)	71	(385)	(40)	(313)	(14)	(522)	587	(112)
Payment related to sale-leaseback transactions	(4)		(47)		(52)		(70)	(59)	(47)
Proceeds from certain financing arrangements			53	50	53	50	186	159	109
Deposits of fixed account values, including the fixed portion of variable	3,041	3,136	6,892	6,370	11,049	9,138	15,212	12,626	14,009
Withdrawals of fixed account values, including the fixed portion of variable	(1,873)	(1,764)	(3,334)	(3,260)	(4,970)	(4,935)	(6,880)	(6,522)	(6,069)
Transfers from (to) separate accounts, net	70	(130)	116	(255)	71	(254)	(195)	(397)	528
Common stock issued for benefit plans	(17)	(10)	(21)	(11)	(21)	(12)	(21)	(13)	(9)
Dividends paid to Lincoln National Corporation	(25)	(180)	(305)	(495)	(580)	(795)	(645)	(1,910)	(660)
Other		(63)		(63)	(1)	(63)	(2)	(60)
Net cash provided by (used in) financing activities	845	1,065	2,994	2,301	5,341	3,120	7,948	4,416	8,259
Net increase (decrease) in cash, invested cash and restricted cash	(609)	(376)	(1,054)	452	(1,040)	732	168	869	(417)
Cash, invested cash and restricted cash as of beginning-of-year	2,331	1,462	2,331	1,462	2,331	1,462	2,331	1,462	1,879
Cash, invested cash and restricted cash as of end-of-period	$ 1,722	$ 1,086	$ 1,277	$ 1,914	$ 1,291	$ 2,194	$ 2,499	$ 2,331	$ 1,462