Derivative Financial Instruments Nature and Amount of Collateral Received From and Posted To Our Derivative Counterparties (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Derivative
Cash Collateral from Counterparties	$ 49.4	$ 28.4
Derivative Liability, Subject to Master Netting Arrangement, Deduction of Financial Instrument Not Offset	44.7	27.6
Cash
Derivative
Cash Collateral from Counterparties	49.4	32.0
Cash Collateral Posted to Counterparties	5.1	0.0
Fixed Maturity Securities
Derivative
FMS Collateral Posted to Counterparties	$ 39.6	$ 27.6

Amount of obligation to return cash collateral under master netting arrangements that have not been offset against derivative assets.

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Amount of right to receive cash collateral under master netting arrangements that have not been offset against derivative liabilities.

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Amount of right to receive securities collateral under master netting arrangements that have not been offset against derivative liabilities.

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Fair value of financial liability or contract with one or more underlyings, notional amount or payment provision or both, and contract can be net settled by means outside contract or delivery of asset, subject to master netting arrangement or similar agreement and not elected or qualified to offset, deducted from derivative liability.

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