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	$ 1,503	$ 1,496	$ 1,436	$ 1,406	$ 1,360	$ 1,341	$ 1,334	$ 1,324					$ 5,841	$ 5,359	$ 5,122
Fee income	1,397	1,438	1,446	1,502	1,567	1,931	1,603	1,529					5,783	6,630	6,120
Net investment income	1,343	1,241	1,338	1,352	1,374	1,510	1,509	1,446					5,274	5,839	5,264
Realized gain (loss)	(124)	11	70	257	700	(32)	(169)	212	$ 327	$ 43	$ 338	$ 11	214	711	(526)
Amortization of deferred gain (loss) on business sold through reinsurance	8	9	10	10	10	8	7	7	20	14	29	22	37	32	33
Other revenues	172	162	133	154	176	149	162	170					621	657	553
Total revenues	4,299	4,357	4,433	4,681	5,187	4,907	4,446	4,688					17,770	19,228	16,566
Expenses
Interest credited	740	717	701	691	691	742	740	738					2,849	2,911	2,899
Benefits	2,053	4,498	2,051	2,199	2,169	1,839	1,848	2,183					10,801	8,039	8,050
Commissions and other expenses	1,326	1,205	1,077	1,191	1,276	1,841	1,260	1,171					4,799	5,548	4,889
Interest and debt expense	41	36	31	29	28	29	28	29					137	114	125
Spark program expense	48	44	44	31	31	22	21	13					167	87	68
Impairment of intangibles		634									634		634
Total expenses	4,208	7,134	3,904	4,141	4,195	4,473	3,897	4,134					19,387	16,699	16,031
Income (loss) before taxes	91	(2,777)	529	540	992	434	549	554					(1,617)	2,529	535
Federal income tax expense (benefit)	(14)	(488)	86	82	176	65	83	97					(332)	420	(56)
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:
Unrealized investment gains (losses)													(13,613)	(2,480)	3,177
Funded status of employee benefit plans													(4)	3	8
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
Comprehensive income (loss)	$ 1,065	$ (6,429)	$ (5,003)	$ (4,533)	$ 416	$ (248)	$ 2,187	$ (2,724)					$ (14,902)	$ (368)	$ 3,776