F&G Reinsurance - Schedule of Effect of Reinsurance on Premiums Earned, Benefits Incurred and Reserve Changes (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Net Benefits Incurred
Net	$ 62	$ 54
Traditional Life Insurance Premiums
Net Premiums Earned
Direct	353	343
Ceded	(20)	(22)
Net	333	321
Net Product Fees
Direct	170	180
Ceded	(24)	(12)
Net	146	168
Net Benefits Incurred
Direct	534	577
Ceded	(50)	(53)
Net	$ 484	$ 524

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