ASU 2018-12 Transition BS (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021
Condensed Balance Sheet Statements, Captions [Line Items]
Total assets	$ 220,333	$ 215,438		$ 249,731
Future policy benefits	31,970	31,146		39,830
Policyholder Contract Deposit	75,209	72,602		64,290
Market risk benefit liabilities	10,751	10,411		16,062
Total liabilities	213,551	208,924		241,195
Retained earnings (deficit)	(5,943)	(5,418)		(9,128)
Accumulated other comprehensive income (loss)	(5,138)	(5,931)	$ (2,586)	(199)
Stockholder's Equity, Including Portion Attributable to Noncontrolling Interest	6,782	6,514	$ 7,723	8,536
Liabilities and Equity	$ 220,333	215,438		249,731
Previously Reported
Condensed Balance Sheet Statements, Captions [Line Items]
Total assets		216,151		247,255
Future policy benefits		41,105		43,589
Policyholder Contract Deposit		74,112		66,195
Market risk benefit liabilities		0		0
Total liabilities		209,287		231,144
Retained earnings (deficit)		(5,717)		(5,653)
Accumulated other comprehensive income (loss)		(5,282)		3,901
Stockholder's Equity, Including Portion Attributable to Noncontrolling Interest		6,864		16,111
Liabilities and Equity		216,151		247,255
Revision of Prior Period, Accounting Standards Update, Adjustment | Accounting Standards Update 2018-12
Condensed Balance Sheet Statements, Captions [Line Items]
Total assets		(713)		2,476
Future policy benefits		(9,959)		(3,759)
Policyholder Contract Deposit		(1,510)		(1,905)
Market risk benefit liabilities		10,411		16,062
Total liabilities		(363)		10,051
Retained earnings (deficit)		299		(3,475)
Accumulated other comprehensive income (loss)		(649)		(4,100)
Stockholder's Equity, Including Portion Attributable to Noncontrolling Interest		(350)		(7,575)
Liabilities and Equity		$ (713)		$ 2,476