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Derivative Financial Instruments (Details 3) - USD ($)
Mar. 31, 2023
Dec. 31, 2022
Derivative [Line Items]    
Cash collateral on deposit with derivative counterparties $ 0 $ 0
Not Designated as Hedging Instrument    
Derivative [Line Items]    
Derivative Asset 4,000,000 12,000,000
Derivative, Collateral, Obligation to Return Securities 0 0
Derivative, Collateral, Obligation to Return Cash 0 0
Derivative Asset, Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election 4,000,000 12,000,000
Derivative Liability (5,000,000) (85,000,000)
Derivative Liability, Not Subject to Master Netting Arrangement Deduction 0 0
Cash collateral on deposit with derivative counterparties 0 0
Derivative Liability, Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election (5,000,000) (85,000,000)
Derivative Assets (Liabilities), at Fair Value, Net (1,000,000) (73,000,000)
Net Derivative (Asset) Liability, Not Subject to Master Netting Arrangement Deduction 0 0
Derivative, Collateral, Obligation to Return Cash (Right to Reclaim Cash) 0 0
Net Derivative Asset (Liability), Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election $ (1,000,000) $ (73,000,000)