Investments (Changes In Allowance For Credit Losses On 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 as of beginning-of-period	$ 39	$ 20	$ 22	$ 19
Additions for securities for which credit losses were not previously recognized	2	1	21	2
Additions (reductions) for securities for which credit losses were previously recognized	(3)	3	(4)	4
Reductions for securities disposed		(12)	(1)	(1)
Reductions for securities charged-off	(13)		(13)	(12)
Balance as of end-of-period	25	12	25	12
Accrued interest receivable on fixed maturity AFS securities			1,100	1,000
Corporate Bonds [Member]
Debt Securities, Available-for-Sale, Allowance for Credit Loss [Line Items]
Balance as of beginning-of-period	27	16	9	17
Additions for securities for which credit losses were not previously recognized	2	1	21	1
Additions (reductions) for securities for which credit losses were previously recognized	(3)	2	(3)	2
Reductions for securities disposed		(12)	(1)	(1)
Reductions for securities charged-off	(13)		(13)	(12)
Balance as of end-of-period	13	7	13	7
RMBS [Member]
Debt Securities, Available-for-Sale, Allowance for Credit Loss [Line Items]
Balance as of beginning-of-period	6	2	7	1
Additions (reductions) for securities for which credit losses were previously recognized		1	(1)	2
Balance as of end-of-period	6	3	6	3
Other [Member]
Debt Securities, Available-for-Sale, Allowance for Credit Loss [Line Items]
Balance as of beginning-of-period	6	2	6	1
Additions for securities for which credit losses were not previously recognized				1
Balance as of end-of-period	$ 6	$ 2	$ 6	$ 2