Consolidated Statements Of Comprehensive Income (Loss) - 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
Revenues
Insurance premiums	$ 1,564	$ 1,548	$ 1,498	$ 1,477	$ 1,419	$ 1,394	$ 1,404	$ 1,400					$ 6,087	$ 5,617	$ 5,372
Fee income	1,453	1,527	1,506	1,568	1,635	2,000	1,673	1,597					6,054	6,905	6,371
Net investment income	1,411	1,295	1,398	1,411	1,444	1,575	1,583	1,509					5,515	6,111	5,510
Realized gain (loss)	(407)	212	515	25	514	79	1	(180)	$ 540	$ (179)	$ 752	$ (100)	345	414	(513)
Amortization of deferred gain on business sold through reinsurance	10	10	11	11	11	9	9	9	22	17	31	27	42	38	41
Other revenues	191	189	160	182	206	181	192	198					723	777	658
Total revenues	4,222	4,781	5,088	4,674	5,229	5,238	4,862	4,533					18,766	19,862	17,439
Expenses
Interest credited	745	722	706	697	696	748	745	743					2,870	2,933	2,923
Benefits	1,985	5,103	2,890	2,568	2,251	2,121	1,930	2,227					12,546	8,529	8,677
Commissions and other expenses	1,382	1,355	1,123	1,235	1,330	1,908	1,325	1,231					5,096	5,794	5,064
Interest and debt expense	78	71	68	66	67	73	65	65					283	270	284
Spark program expense	48	44	44	31	31	22	21	13					167	87	68
Impairment of intangibles		634									634		634
Total expenses	4,238	7,929	4,831	4,597	4,375	4,872	4,086	4,279					21,596	17,613	17,016
Income (loss) before taxes	(16)	(3,148)	257	77	854	366	776	254					(2,830)	2,249	423
Federal income tax expense (benefit)	(37)	(565)	29	(15)	146	50	131	35					(589)	362	(76)
Net income (loss)	21	(2,583)	228	92	708	316	645	219	$ 319	$ 864	$ (2,264)	$ 1,180	(2,241)	1,887	499
Unrealized investment gains (losses)													(14,030)	(2,535)	3,192
Foreign currency translation adjustment													(20)	(2)	5
Funded status of employee benefit plans													(59)	47	61
Total other comprehensive income (loss), net of tax	960	(4,291)	(5,589)	(5,189)	(408)	(630)	1,718	(3,170)					(14,109)	(2,490)	3,258
Comprehensive income (loss)	$ 981	$ (6,874)	$ (5,361)	$ (5,097)	$ 300	$ (314)	$ 2,363	$ (2,951)					$ (16,350)	$ (603)	$ 3,757
Net Income (Loss) Per Common Share
Basic (in dollars per share)	$ 0.12	$ (15.22)	$ 1.34	$ 0.53	$ 3.92	$ 1.69	$ 3.40	$ 1.14					$ (13.11)	$ 10.07	$ 2.58
Diluted (in dollars per share)	0.09	(15.23)	1.28	0.52	3.86	1.67	3.36	1.13					(13.19)	9.98	2.56
Cash Dividends Declared Per Common Share	$ 0.45	$ 0.45	$ 0.45	$ 0.45	$ 0.45	$ 0.42	$ 0.42	$ 0.42					$ 1.80	$ 1.71	$ 1.62