Adoption Of ASU 2018-12 (Summary Of Restated Consolidated Statements Of Cash Flows) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Net income (loss)	$ 853	$ (1,776)	$ 483	$ 545
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Realized (gain) loss	453	(249)	3,066	(1,531)
Market risk benefit (gain) loss	$ (1,428)	(798)	(2,832)	(1,679)
Change in:
Deferred acquisition costs, value of business acquired, deferred sales inducements and deferred front-end loads			495	365
Insurance liabilities and reinsurance-related balances			(1,804)	4,463
Accrued expenses			(19)	(407)
Federal income tax accruals			(17)	249
Other			(170)	324
Net cash provided by operating activities			(206)	3,015
Deposits of fixed account balances			11,129	11,845
Withdrawals of fixed account balances			(7,759)	(5,435)
Transfers from (to) separate accounts, net			(519)	101
Net cash provided by (used in) financing activities			$ 2,012	5,708
Accounting Standards Update 2018-12 [Member]
Net income (loss)		(1,776)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Realized (gain) loss		(249)
Market risk benefit (gain) loss		(798)
Accounting Standards Update 2018-12 [Member] | As Previously Reported [Member]
Net income (loss)		(2,583)		(2,264)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Realized (gain) loss		(212)		(752)
Change in:
Deferred acquisition costs, value of business acquired, deferred sales inducements and deferred front-end loads				74
Insurance liabilities and reinsurance-related balances				5,872
Accrued expenses				(402)
Federal income tax accruals				(498)
Other				299
Accounting Standards Update 2018-12 [Member] | Restatement Impacts [Member]
Net income (loss)		807		2,809
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Realized (gain) loss		(37)		(779)
Market risk benefit (gain) loss		$ (798)		(1,679)
Change in:
Deferred acquisition costs, value of business acquired, deferred sales inducements and deferred front-end loads				291
Insurance liabilities and reinsurance-related balances				(1,409)
Accrued expenses				(5)
Federal income tax accruals				747
Other				$ 25