Investments (Changes In Allowance For Credit Losses On AFS) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Debt Securities, Available-for-Sale, Allowance for Credit Loss [Line Items]
Balance	$ 20	$ 14	$ 19	$ 13
Additions for securities for which credit losses were not previously recognized	1		2
Additions (reductions) for securities for which credit losses were previously recognized	3	1	4	2
Reductions for securities disposed			(1)
Reductions for securities charged-off	(12)	(6)	(12)	(6)
Balance	12	9	12	9
Accrued interest income on fixed maturity AFS securities			1,000	1,000
Corporate Bonds [Member]
Debt Securities, Available-for-Sale, Allowance for Credit Loss [Line Items]
Balance	16	13	17	12
Additions for securities for which credit losses were not previously recognized	1		1
Additions (reductions) for securities for which credit losses were previously recognized	2	1	2	2
Reductions for securities disposed			(1)
Reductions for securities charged-off	(12)	(6)	(12)	(6)
Balance	7	8	7	8
RMBS [Member]
Debt Securities, Available-for-Sale, Allowance for Credit Loss [Line Items]
Balance	2	1	1	1
Additions (reductions) for securities for which credit losses were previously recognized	1		2
Balance	3	$ 1	3	$ 1
ABS [Member]
Debt Securities, Available-for-Sale, Allowance for Credit Loss [Line Items]
Balance	1		1
Other [Member]
Debt Securities, Available-for-Sale, Allowance for Credit Loss [Line Items]
Balance	2		1
Additions for securities for which credit losses were not previously recognized			1
Balance	$ 2		$ 2