Segment Information (Reconciliation Of Revenue From Segments To Consolidated) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Segment Reporting Information [Line Items]
Total revenues	$ 4,798	$ 5,241	$ 14,589	$ 14,627
Annuities Segment [Member]
Segment Reporting Information [Line Items]
Total revenues	1,183	1,267	3,583	3,720
Retirement Plan Services Segment [Member]
Segment Reporting Information [Line Items]
Total revenues	316	328	949	989
Life Insurance Segment [Member]
Segment Reporting Information [Line Items]
Total revenues	1,762	2,325	5,387	6,293
Group Protection Segment [Member]
Segment Reporting Information [Line Items]
Total revenues	1,333	1,243	3,959	3,743
Other Operations [Member]
Segment Reporting Information [Line Items]
Total revenues	36	42	111	125
Excluded Realized Gain (Loss), Pre-Tax [Member]
Segment Reporting Information [Line Items]
Total revenues	171	$ 36	618	(245)
Amortization Of DFEL Associated With Benefit Ratio Unlocking, Pre-Tax [Member]
Segment Reporting Information [Line Items]
Total revenues	$ (3)		$ (18)	$ 2