DAC, VOBA, DSI, and DFEL - DSI (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Movement in Deferred Sales Inducements [Roll Forward]
Amortization	$ (4)	$ (3)
UL and Other
Movement in Deferred Sales Inducements [Roll Forward]
Balance as of beginning-of-year	25	27
Deferrals	0	0
Amortization	0	(1)
Balance as of end-of-period	25	26
Retirement Plan Services
Movement in Deferred Sales Inducements [Roll Forward]
Balance as of beginning-of-year	62	42
Deferrals	1	4
Amortization	0	0
Balance as of end-of-period	63	46
Variable Annuities
Movement in Deferred Sales Inducements [Roll Forward]
Balance as of beginning-of-year	104	113
Deferrals	0	0
Amortization	(3)	(2)
Balance as of end-of-period	101	111
Fixed Annuities
Movement in Deferred Sales Inducements [Roll Forward]
Balance as of beginning-of-year	14	16
Deferrals	0	0
Amortization	(1)	0
Balance as of end-of-period	$ 13	$ 16