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Investments (Summary Of Gross Gains (Losses) From Sales Of Fixed Maturity And Equity Securities) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Schedule of Available-for-sale Securities [Line Items]
Proceeds from sales of fixed maturity securities, available for sale			$ 1,177	$ 883
Proceeds from sales of equity securities			1,030	579
Fixed Maturity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Proceeds from sales of fixed maturity securities, available for sale	$ 405	$ 283	1,177	883
Gross gains from dispositions	5	17	33	52
Gross losses from dispositions	(58)	(11)	(98)	(26)
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Proceeds from sales of equity securities	592	104	1,030	579
Gross gains from dispositions	59	3	67	21
Gross losses from dispositions	$ (3)	$ (3)	$ (53)	$ (11)

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Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

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