Deferred Policy Acquisition Costs and Value of Business Acquired - DAC and VOBA Activity (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Beginning balance	$ 2,250
Ending balance	2,148	$ 2,250
Movement Analysis Of Value of Business Acquired VOBA [Roll Forward]
Beginning balance	406	439	$ 473
Deferrals of commissions and expenses	3	4	5
Amortization expense	(33)	(37)	(39)
Ending balance	376	406	439
Wealth Solutions
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Beginning balance	695	691	691
Deferrals of commissions and expenses	60	59	59
Amortization expense	(54)	(55)	(59)
Ending balance	701	695	691
Businesses exited
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Beginning balance	938	1,043	1,158
Deferrals of commissions and expenses	0	0	0
Amortization expense	(100)	(105)	(115)
Ending balance	838	938	1,043
Other
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Beginning balance	18
Ending balance	18	18
Health Solutions
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Beginning balance	193	171	144
Deferrals of commissions and expenses	58	54	55
Amortization expense	(36)	(32)	(28)
Ending balance	$ 215	$ 193	$ 171