Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Name:	us-gaap_GoodwillImpairmentLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Goodwill and Specifically Identifiable Intangible Assets (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Sep. 30, 2022	Dec. 31, 2022	Dec. 31, 2021
Future sales volume and product mix used to forcast		10 years
Goodwill impairment		$ 634
Annuities Segment [Member]
Goodwill impairment
Retirement Plan Services Segment [Member]
Goodwill impairment
Life Insurance Segment [Member]
Goodwill impairment	$ 634	634
Group Protection Segment [Member]
Goodwill impairment