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Investments (Summary Of Components Of Net Investment Income) (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]
Gross investment income before adjustments	$ 167	$ 308	$ 661	$ 992
Funds held interest income (expense)		1	4	12
Future policy benefit reserve income (expense)				(1)
Gross investment income	167	309	665	1,004
Investment expenses	(15)	(16)	(45)	(44)
Net investment income	151	293	620	960
Fixed Maturity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Gross investment income before adjustments	186	134	503	423
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Gross investment income before adjustments	6	4	15	12
Short Term Investments [Member]
Schedule of Available-for-sale Securities [Line Items]
Gross investment income before adjustments	5		12	1
Limited Partnerships [Member]
Schedule of Available-for-sale Securities [Line Items]
Gross investment income before adjustments	(42)	139	94	493
Other [Member]
Schedule of Available-for-sale Securities [Line Items]
Gross investment income before adjustments	$ 11	$ 31	$ 37	$ 63

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