DAC, VOBA, DSI, and DFEL (DAC) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Changes in DAC [Roll Forward]
Balance as of beginning-of-year	$ 5,888	$ 5,565	$ 7,352
Business acquired (sold) through reinsurance		(362)	(10)
Deferrals	1,372	1,373	1,446
Amortization, net of interest:
Amortization, excluding unlocking, net of interest	(811)	(1,001)	(796)
Unlocking	(210)	(565)	(231)
Adjustment related to realized gains (losses)	(129)	86	(19)
Adjustment related to unrealized gains (losses)	6,648	792	(2,182)
Balance as of end-of-year	$ 12,758	5,888	5,565
Cumulative Effect, Period of Adoption, Adjustment [Member]
Changes in DAC [Roll Forward]
Balance as of beginning-of-year		$ 5
Amortization, net of interest:
Balance as of end-of-year			$ 5