DAC, VOBA, DSI, and DFEL (DSI) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Changes in DSI [Roll Forward]
Balance as of beginning-of-year	$ 245	$ 259	$ 281
Deferrals	6	5	7
Amortization, net of interest:
Amortization, excluding unlocking, net of interest	(14)	(25)	(20)
Unlocking	2		(1)
Adjustment related to realized (gains) losses	(1)	(2)	(2)
Adjustment related to unrealized (gains) losses	20	8	(6)
Balance as of end-of-year	$ 258	$ 245	$ 259