DAC, VOBA, DSI, and DFEL (VOBA) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Traditional Life [Member]
Changes in VOBA [Roll Forward]
Balance as of beginning-of-year	$ 50	$ 59
Amortization:
Amortization, excluding unlocking	(2)	(9)
Balance as of end-of-year	48	50
UL and Other [Member]
Changes in VOBA [Roll Forward]
Balance as of beginning-of-year	465	511
Deferrals		2
Amortization:
Amortization, excluding unlocking	(11)	(48)
Balance as of end-of-year	454	465
Fixed Annuities [Member]
Changes in VOBA [Roll Forward]
Balance as of beginning-of-year	17	20
Deferrals	1
Amortization:
Amortization, excluding unlocking	(1)	(3)
Balance as of end-of-year	$ 17	$ 17