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Investments - Investments - Accrued Interest Receivable on Fixed Maturities, AFS and Mortgage Loans (Details) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Debt Securities [Member]
Schedule of Investments [Line Items]
Interest Receivable	$ 426	$ 412
Mortgages [Member]
Schedule of Investments [Line Items]
Interest Receivable	$ 23	$ 22

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- Definition

Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.

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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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