DAC, VOBA, DSI, and DFEL (DFEL) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Changes in DFEL [Abstract]
Balance as of beginning-of-year	$ 399	$ 396	$ 646
Business acquired (sold) through reinsurance		(290)
Deferrals	1,083	1,014	1,002
Amortization, net of interest:
Amortization, excluding unlocking, net of interest	(531)	(593)	(529)
Unlocking	(48)	(387)	(275)
Adjustment related to realized (gains) losses	(28)	(22)	16
Adjustment related to unrealized (gains) losses	(4,820)	(281)	468
Balance as of end-of-year	$ 5,695	399	396
Cumulative Effect, Period of Adoption, Adjustment [Member]
Changes in DFEL [Abstract]
Balance as of beginning-of-year		$ 4
Amortization, net of interest:
Balance as of end-of-year			$ 4