Schedule V. Valuation and Qualifying Accounts (Schedule of valuation and qualifying accounts) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Mortgage loan receivables
Movement in valuation allowances and reserves [Roll Forward]
Balance Beginning of Period	$ 24	$ 16	$ 26
Charged to Costs and Expenses	0	0	0
Charged to Other Accounts	11	8	(10)
Deductions	0	0	0
Balance at End of Period	35	24	16
Insurance and reinsurance receivables
Movement in valuation allowances and reserves [Roll Forward]
Balance Beginning of Period	51	50	54
Charged to Costs and Expenses	11	8	4
Charged to Other Accounts	0	0	0
Deductions	(12)	(7)	(8)
Balance at End of Period	50	51	50
Fixed maturity securities
Movement in valuation allowances and reserves [Roll Forward]
Balance Beginning of Period	1	18	40
Charged to Costs and Expenses	0	0	0
Charged to Other Accounts	44	4	30
Deductions	(29)	(21)	(52)
Balance at End of Period	$ 16	$ 1	$ 18