Derivatives (Embedded Derivatives) (Details) - USD ($) $ in Millions	Jun. 30, 2025	Dec. 31, 2024
Derivatives, Fair Value [Line Items]
Total	$ 90	$ (9)
Funds withheld and guarantees on reinsurance \| Other liabilities
Derivatives, Fair Value [Line Items]
Total	(105)	(163)
Fixed annuities with equity indexed returns [Member] \| Policyholder account balances
Derivatives, Fair Value [Line Items]
Total	$ (15)	$ (172)

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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