Investments (Changes In Allowance For Credit Losses Of AFS) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Debt Securities, Available-for-sale, Allowance for Credit Loss [Line Items]
Balance	$ 37	$ 20	$ 21	$ 19
Additions for securities for which credit losses were not previously recognized	2	1	20	2
Additions (reductions) for securities for which credit losses were previously recognized	(2)	3	(3)	4
Reductions for securities disposed			(1)	(1)
Reductions for securities charged-off	(12)	(12)	(12)	(12)
Balance	25	12	25	12
Accrued investment income on fixed maturity AFS securities			1,100	1,000
Corporate Bonds [Member]
Debt Securities, Available-for-sale, Allowance for Credit Loss [Line Items]
Balance	26	16	9	17
Additions for securities for which credit losses were not previously recognized	2	1	20	1
Additions (reductions) for securities for which credit losses were previously recognized	(3)	2	(3)	2
Reductions for securities disposed			(1)	(1)
Reductions for securities charged-off	(12)	(12)	(12)	(12)
Balance	13	7	13	7
RMBS [Member]
Debt Securities, Available-for-sale, Allowance for Credit Loss [Line Items]
Balance	6	2	7	1
Additions (reductions) for securities for which credit losses were previously recognized		1	(1)	2
Balance	6	3	6	3
Other Securities [Member]
Debt Securities, Available-for-sale, Allowance for Credit Loss [Line Items]
Balance	5	2	5	1
Additions for securities for which credit losses were not previously recognized				1
Additions (reductions) for securities for which credit losses were previously recognized	1		1
Balance	$ 6	$ 2	$ 6	$ 2