Derivatives (Embedded Derivatives) (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Derivatives, Fair Value [Line Items]
Total	$ (62)	$ (93)
Funds withheld and guarantees on reinsurance \| Other liabilities
Derivatives, Fair Value [Line Items]
Total	(105)	(70)
Fixed annuities with equity indexed returns [Member] \| Policyholder account balances
Derivatives, Fair Value [Line Items]
Total	$ (167)	$ (163)

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
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480434/815-10-50-4B

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