F&G Reinsurance - Narrative (Details) $ in Millions			3 Months Ended
	Sep. 01, 2022 USD ($)	Jan. 15, 2021	Mar. 31, 2023 USD ($) policy	Dec. 31, 2022 USD ($)
Ceded Credit Risk [Line Items]
Number of policies reinsured by foreign company not engaged in insurance | policy			0
Net amount recoverable			$ 6,362	$ 5,418
Aspida Re
Ceded Credit Risk [Line Items]
Funds withheld co-insurance basis, percentage		50.00%
Funds withheld coinsurance basis policies ceded on quota share basis, monthly cession capped amount	$ 350		450
Aspida Re | AM Best, A- Rating
Ceded Credit Risk [Line Items]
Net amount recoverable			4,073
Aspida Re | Minimum
Ceded Credit Risk [Line Items]
Funds withheld co-insurance basis, percentage	50.00%
Aspida Re | Maximum
Ceded Credit Risk [Line Items]
Funds withheld co-insurance basis, percentage	75.00%
Wilton Reassurance Company | AM Best, A+ Rating | Fitch, A Rating
Ceded Credit Risk [Line Items]
Net amount recoverable			1,184
Somerset | AM Best, A- Rating | Standard & Poor's, BBB+ Rating
Ceded Credit Risk [Line Items]
Net amount recoverable			$ 553