DAC, VOBA, DSI, and DFEL (DSI) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
UL and Other [Member]
Changes in DSI [Roll Forward]
Balance as of beginning-of-year	$ 30	$ 31
Deferrals		1
Amortization	(1)	(2)
Balance as of end-of-year	29	30
Retirement Plan Services [Member]
Changes in DSI [Roll Forward]
Balance as of beginning-of-year	17	14
Deferrals	2	4
Amortization	1	(1)
Balance as of end-of-year	20	17
Variable Annuities [Member]
Changes in DSI [Roll Forward]
Balance as of beginning-of-year	128	139
Deferrals	1	1
Amortization	(4)	(12)
Balance as of end-of-year	125	128
Fixed Annuities [Member]
Changes in DSI [Roll Forward]
Balance as of beginning-of-year	23	27
Amortization	(1)	(4)
Balance as of end-of-year	$ 22	$ 23