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Reinsurance - Annuity Reinsurance Treaties and Related Recoverables (Details) - USD ($) $ in Millions	Jun. 30, 2025	Dec. 31, 2024
Effects of Reinsurance [Line Items]
Reinsurance Recoverable	$ 9,336	$ 9,564
EquiTrust Life Insurance Company
Effects of Reinsurance [Line Items]
Reinsurance Recoverable	210	231
Athene Life Re Ltd.
Effects of Reinsurance [Line Items]
Reinsurance Recoverable	1,570	1,747
AeBe ISA LTD
Effects of Reinsurance [Line Items]
Reinsurance Recoverable	4,023	4,166
Reinsurance Group of America Inc. (RGA)
Effects of Reinsurance [Line Items]
Reinsurance Recoverable	$ 3,533	$ 3,420

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- Definition

Reinsurance Recoverables, Including Reinsurance Premium Paid, Net Of Adjustments

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No definition available.

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- Definition

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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No definition available.

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- Details

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- Details

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