Schedule V. Valuation and Qualifying Accounts (Schedule of valuation and qualifying accounts) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Mortgage loan receivables
Movement in valuation allowances and reserves [Roll Forward]
Balance Beginning of Period	$ 26	$ 7
Charged to Costs and Expenses	0	0
Charged to Other Accounts	(10)	19
Deductions	0	0
Balance at End of Period	16	26	$ 7
Insurance and reinsurance receivables
Movement in valuation allowances and reserves [Roll Forward]
Balance Beginning of Period	54	57	71
Charged to Costs and Expenses	4	4	(6)
Charged to Other Accounts	0	0	0
Deductions	(8)	(7)	(8)
Balance at End of Period	50	54	57
Fixed maturity securities
Movement in valuation allowances and reserves [Roll Forward]
Balance Beginning of Period	40	6
Charged to Costs and Expenses	0	0
Charged to Other Accounts	30	92
Deductions	(52)	(58)
Balance at End of Period	$ 18	$ 40	$ 6