DAC, VOBA, DSI, and DFEL - DSI (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Movement in Deferred Sales Inducements [Roll Forward]
Amortization	$ (4)	$ (4)	$ (8)	$ (8)
UL and Other
Movement in Deferred Sales Inducements [Roll Forward]
Balance as of beginning-of-year			27	28
Deferrals			0	0
Amortization			(1)	(1)
Balance as of end-of-period	26	27	26	27
Retirement Plan Services
Movement in Deferred Sales Inducements [Roll Forward]
Balance as of beginning-of-year			42	26
Deferrals			10	12
Amortization			(1)	0
Balance as of end-of-period	51	38	51	38
Variable Annuities
Movement in Deferred Sales Inducements [Roll Forward]
Balance as of beginning-of-year			113	122
Deferrals			0	1
Amortization			(5)	(6)
Balance as of end-of-period	108	117	108	117
Fixed Annuities
Movement in Deferred Sales Inducements [Roll Forward]
Balance as of beginning-of-year			16	19
Deferrals			0	0
Amortization			(1)	(1)
Balance as of end-of-period	$ 15	$ 18	$ 15	$ 18