DAC, VOBA, DSI, and DFEL - VOBA (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Movement in Present Value of Future Insurance Profits [Roll Forward]
Amortization	$ (47)	$ (53)	$ (59)
Traditional Life
Movement in Present Value of Future Insurance Profits [Roll Forward]
Balance as of beginning-of-year	42	50
Business acquired (sold) through reinsurance	0	0
Deferrals	0	0
Amortization	(7)	(8)
Balance as of end-of-year	35	42	50
UL and Other
Movement in Present Value of Future Insurance Profits [Roll Forward]
Balance as of beginning-of-year	402	454
Business acquired (sold) through reinsurance	(73)	(11)
Deferrals	2	2
Amortization	(38)	(43)
Balance as of end-of-year	366	402	454
Fixed Annuities
Movement in Present Value of Future Insurance Profits [Roll Forward]
Balance as of beginning-of-year	15	17
Business acquired (sold) through reinsurance	0	0
Deferrals	0	0
Amortization	(2)	(2)
Balance as of end-of-year	$ 13	$ 15	$ 17