Goodwill (Changes In Carrying Amount Of Goodwill, By Reportable Segment) (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2022	Sep. 30, 2023	Dec. 31, 2022	Dec. 31, 2021
Goodwill [Roll Forward]
Goodwill Gross				$ 3,930	$ 3,930
Accumulated impairment as of beginning-of-year				(2,786)	(2,152)
Impairment	$ (634)	$ (634)
Net goodwill as of end-of-year	1,144	1,144	$ 1,144	1,144	1,778
Annuities Segment [Member]
Goodwill [Roll Forward]
Goodwill Gross				1,040	1,040
Accumulated impairment as of beginning-of-year				(600)	(600)
Net goodwill as of end-of-year	440	440	440	440	440
Retirement Plan Services Segment [Member]
Goodwill [Roll Forward]
Goodwill Gross				20	20
Net goodwill as of end-of-year	20	20	20	20	20
Life Insurance Segment [Member]
Goodwill [Roll Forward]
Goodwill Gross				2,186	2,186
Accumulated impairment as of beginning-of-year				(2,186)	(1,552)
Impairment	(634)	(634)
Net goodwill as of end-of-year					634
Group Protection Segment [Member]
Goodwill [Roll Forward]
Goodwill Gross				684	684
Net goodwill as of end-of-year	$ 684	$ 684	$ 684	$ 684	$ 684