Adoption of ASU 2018-12 - Summary of Effect on Previously Reported Consolidated Balance Sheets (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
ASSETS
Deferred acquisition costs, value of business acquired and deferred sales inducements	$ 12,397	$ 12,235		$ 12,104
Reinsurance recoverables, net of allowance for credit losses	29,843	19,953		19,388
Market risk benefit assets	3,894	2,807
Other assets	9,311	6,778
Total assets	372,413	334,331
Liabilities
Future contract benefits	39,864	38,826		42,828
Market risk benefit liabilities	1,716	2,078
Deferred front-end loads	5,901	5,091		3,591
Other liabilities	7,350	6,356
Total liabilities	365,520	329,229
Stockholders’ Equity
Retained earnings	4,778	5,924
Accumulated other comprehensive income (loss)	(3,476)	(6,352)
Total stockholders’ equity	$ 6,893	5,102	$ 19,915
As Previously Reported
ASSETS
Deferred acquisition costs, value of business acquired and deferred sales inducements		13,803		6,025
Reinsurance recoverables, net of allowance for credit losses		20,392		16,350
Other assets		8,469
Total assets		335,222
Liabilities
Future contract benefits		41,756		38,896
Deferred front-end loads		5,708		401
Other liabilities		6,311
Total liabilities		330,653
Stockholders’ Equity
Retained earnings		6,707
Accumulated other comprehensive income (loss)		(7,668)
Total stockholders’ equity		4,569	20,754
Adoption of New Accounting Standard | Accounting Standards Update 2018-12
ASSETS
Deferred acquisition costs, value of business acquired and deferred sales inducements		(1,568)		6,079
Reinsurance recoverables, net of allowance for credit losses		(439)
Market risk benefit assets		2,807
Other assets		(1,691)
Total assets		(891)
Liabilities
Future contract benefits		(2,930)		(1,700)
Market risk benefit liabilities		2,078
Deferred front-end loads		(617)		$ 3,190
Other liabilities		45
Total liabilities		(1,424)
Stockholders’ Equity
Retained earnings		(783)
Accumulated other comprehensive income (loss)		1,316
Total stockholders’ equity		$ 533	$ (839)