DAC, VOBA, DSI, and DFEL - DSI (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Movement in Deferred Sales Inducements [Roll Forward]
Amortization	$ (4)	$ (5)	$ (13)	$ (14)
UL and Other
Movement in Deferred Sales Inducements [Roll Forward]
Balance as of beginning-of-year			28	30
Deferrals			1	1
Amortization			(2)	(2)
Balance as of end-of-period	27	29	27	29
Retirement Plan Services
Movement in Deferred Sales Inducements [Roll Forward]
Balance as of beginning-of-year			26	17
Deferrals			17	5
Amortization			(1)	0
Balance as of end-of-period	42	22	42	22
Variable Annuities
Movement in Deferred Sales Inducements [Roll Forward]
Balance as of beginning-of-year			122	128
Deferrals			1	4
Amortization			(8)	(9)
Balance as of end-of-period	115	123	115	123
Fixed Annuities
Movement in Deferred Sales Inducements [Roll Forward]
Balance as of beginning-of-year			19	23
Deferrals			0	0
Amortization			(2)	(3)
Balance as of end-of-period	$ 17	$ 20	$ 17	$ 20