Adoption of ASU 2018-12 - Summary of Effect on Previously Reported Consolidated Statements of Cash Flows (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash Flows from Operating Activities
Net income (loss)	$ (752)	$ 1,358	$ 3,778
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Realized (gain) loss	4,311	(840)	867
Market risk benefit (gain) loss	(2,264)	(3,246)	(3,753)
Change in:
Deferred acquisition costs, value of business acquired, deferred ales inducements and deferred front-end loads	637	488	475
Insurance liabilities and reinsurance-related balances	(3,681)	4,419	(2,337)
Accrued expenses	109	(91)	399
Federal income tax accruals	(396)	421	864
Other	$ 133	275	(401)
As Previously Reported
Cash Flows from Operating Activities
Net income (loss)		(2,241)	1,887
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Realized (gain) loss		(345)	(414)
Change in:
Deferred acquisition costs, value of business acquired, deferred ales inducements and deferred front-end loads		118	312
Insurance liabilities and reinsurance-related balances		5,630	(2,233)
Accrued expenses		(89)	392
Federal income tax accruals		(535)	361
Other		246	(413)
Adoption of New Accounting Standard | Accounting Standards Update 2018-12
Cash Flows from Operating Activities
Net income (loss)		3,599	1,891
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Realized (gain) loss		(495)	1,281
Market risk benefit (gain) loss		(3,246)	(3,753)
Change in:
Deferred acquisition costs, value of business acquired, deferred ales inducements and deferred front-end loads		370	163
Insurance liabilities and reinsurance-related balances		(1,211)	(104)
Accrued expenses		(2)	7
Federal income tax accruals		956	503
Other		$ 29	$ 12