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Investments - Other (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Fixed-maturities available for sale | Debt securities
Debt Securities, Available-for-sale [Line Items]
Assets held by insurance regulators	$ 13	$ 13

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- Definition

Carrying amount of cash and investment securities on deposit with state regulatory authorities in connection with capital requirements.

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