DAC, VOBA, DSI, and DFEL - VOBA (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Movement in Present Value of Future Insurance Profits [Roll Forward]
Balance as of beginning-of-year			$ 900
Amortization	$ (53)	$ (60)	(77)
Traditional Life
Movement in Present Value of Future Insurance Profits [Roll Forward]
Balance as of beginning-of-year	50	59	67
Business acquired (sold) through reinsurance	0
Deferrals	0	0
Amortization	(8)	(9)
Balance as of end-of-year	42	50	59
UL and Other
Movement in Present Value of Future Insurance Profits [Roll Forward]
Balance as of beginning-of-year	465	511	810
Business acquired (sold) through reinsurance	(11)
Deferrals	2	2
Amortization	(43)	(48)
Balance as of end-of-year	413	465	511
Fixed Annuities
Movement in Present Value of Future Insurance Profits [Roll Forward]
Balance as of beginning-of-year	17	20	23
Business acquired (sold) through reinsurance	0
Deferrals	0	0
Amortization	(2)	(3)
Balance as of end-of-year	$ 15	$ 17	$ 20