Derivatives (Embedded Derivatives) (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Derivatives, Fair Value [Line Items]
Total	$ 44	$ 17
Funds withheld and guarantees on reinsurance \| Other liabilities
Derivatives, Fair Value [Line Items]
Total	(105)	(123)
Fixed annuities with equity indexed returns [Member] \| Policyholder account balances
Derivatives, Fair Value [Line Items]
Total	$ 149	$ 140

Fair value as of the balance sheet date of the embedded derivative or group of embedded derivatives classified as a liability.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5624163-113959

Name:	us-gaap_EmbeddedDerivativeFairValueOfEmbeddedDerivativeLiability
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant