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, 2023	Sep. 30, 2022	Dec. 31, 2022	Dec. 31, 2021
Goodwill [Roll Forward]
Gross Goodwill as of Beginning-of-Year				$ 3,932	$ 3,932
Accumulated impairment as of beginning-of-year				(2,788)	(2,154)
Gross goodwill as of beginning-of-year		$ 1,144	$ 1,778
Impairment			(634)
Gross goodwill as of end-of-year	$ 1,144	1,144	1,144
Annuities [Member]
Goodwill [Roll Forward]
Gross Goodwill as of Beginning-of-Year				1,040	1,040
Accumulated impairment as of beginning-of-year				(600)	(600)
Gross goodwill as of beginning-of-year		440	440
Impairment
Gross goodwill as of end-of-year	440	440	440
Life Insurance [Member]
Goodwill [Roll Forward]
Gross Goodwill as of Beginning-of-Year				2,188	2,188
Accumulated impairment as of beginning-of-year				(2,188)	(1,554)
Gross goodwill as of beginning-of-year			634
Impairment	(634)		(634)
Group Protection [Member]
Goodwill [Roll Forward]
Gross Goodwill as of Beginning-of-Year				684	684
Gross goodwill as of beginning-of-year		684	684
Impairment
Gross goodwill as of end-of-year	684	684	684
Retirement Plan Services [Member]
Goodwill [Roll Forward]
Gross Goodwill as of Beginning-of-Year				$ 20	$ 20
Gross goodwill as of beginning-of-year		20	20
Impairment
Gross goodwill as of end-of-year	$ 20	$ 20	$ 20