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	$ 5,801	$ 5,590	$ 7,418
Business acquired (sold) through reinsurance		(362)	(26)
Deferrals	1,372	1,364	1,427
Amortization, net of interest:
Amortization, excluding unlocking, net of interest	(770)	(980)	(811)
Unlocking	(152)	(558)	(211)
Adjustment related to realized gains (losses)	(113)	(45)	(35)
Adjustment related to unrealized (gains) losses	6,648	792	(2,177)
Balance as of end-of-year	$ 12,786	$ 5,801	5,590
Cumulative Effect, Period of Adoption, Adjustment [Member]
Changes in DAC [Roll Forward]
Balance as of beginning-of-year			$ 5