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	$ 415	$ 401	$ 650
Business acquired (sold) through reinsurance		(290)
Deferrals	1,083	1,015	1,003
Amortization, net of interest:
Amortization, excluding unlocking, net of interest	(565)	(595)	(538)
Unlocking	(49)	(387)	(275)
Adjustment related to realized (gains) losses	(35)	(10)	25
Adjustment related to unrealized (gains) losses	4,820	281	(468)
Balance as of end-of-year	$ 5,669	415	401
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