Adoption of ASU 2018-12 (Summary of Restated Consolidated Statements of Cash Flows) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Net income (loss)	$ (881)	$ 1,482
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Realized (gain) loss	828	(181)
Market risk benefit (gain) loss	619	(1,359)
Change in:
Deferred acquisition costs, value of business acquired, deferred sales inducements and deferred front-end loads	156	122
Insurance liabilities and reinsurance-related balances	(1,322)	636
Accrued expenses	(143)	(262)
Federal income tax accruals	(289)	407
Other	(27)	(136)
Net cash provided by operating activities	(774)	476
Deposits of fixed account values balances	4,192	3,477
Withdrawals of fixed account values balances	(2,570)	(2,063)
Transfers from (to) separate accounts, net	21	94
Net cash provided by (used in) financing activities	$ 1,522	1,012
Accounting Standards Update 2018-12 [Member] | As Previously Reported [Member]
Net income (loss)		92
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Realized (gain) loss		(25)
Change in:
Deferred acquisition costs, value of business acquired, deferred sales inducements and deferred front-end loads		31
Insurance liabilities and reinsurance-related balances		999
Federal income tax accruals		39
Other		(165)
Accounting Standards Update 2018-12 [Member] | Restatement Impacts [Member]
Net income (loss)		1,390
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Realized (gain) loss		(156)
Market risk benefit (gain) loss		(1,359)
Change in:
Deferred acquisition costs, value of business acquired, deferred sales inducements and deferred front-end loads		91
Insurance liabilities and reinsurance-related balances		(363)
Federal income tax accruals		368
Other		$ 29