Derivative Instruments - Schedule of CDSs (Details) - Credit Default Swap, Selling Protection - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Credit Derivatives [Line Items]
Maximum Potential Payout	$ 1	$ 0
Less: Counterparty thresholds	0	0
Maximum collateral potentially required to post	$ 1	$ 0

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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