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Derivative Instruments (Open Credit Default Swap Liabilities) (Details) $ in Millions | 6 Months Ended
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Jun. 30, 2022 USD ($) item
Summary Of Credit Derivatives |
Maximum potential payout | $ 244
BBB+ [Member] | Derivative Contract, Maturing 12-20-2026 [Member] |
Summary Of Credit Derivatives |
Maturity | Jun. 20, 2027
Number of instruments | item | 4
Maximum potential payout | $ 244

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