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Fair Value (Assets and Liabilities Measured - Quantitative Information) (Details) - Level 3
Jun. 30, 2023
Dec. 31, 2022
Measurement Input, Mortality Rate | Minimum    
Fair Value, Option, Quantitative Disclosures    
Market Risk Benefit, Measurement Input 0.0004 0.0004
Embedded Derivative Liability, Measurement Input 0.0003 0.0003
Measurement Input, Mortality Rate | Maximum    
Fair Value, Option, Quantitative Disclosures    
Market Risk Benefit, Measurement Input 0.1290 0.1290
Embedded Derivative Liability, Measurement Input 0.0924 0.0924
Measurement Input, Lapse Rate | Minimum    
Fair Value, Option, Quantitative Disclosures    
Market Risk Benefit, Measurement Input 0.0100 0.0100
Embedded Derivative Liability, Measurement Input 0.0100 0.0100
Measurement Input, Lapse Rate | Maximum    
Fair Value, Option, Quantitative Disclosures    
Market Risk Benefit, Measurement Input 0.2411 0.2411
Embedded Derivative Liability, Measurement Input 0.6230 0.6230
Measurement Input, Utilization Rate | Minimum    
Fair Value, Option, Quantitative Disclosures    
Market Risk Benefit, Measurement Input 0.0000 0.0000
Measurement Input, Utilization Rate | Maximum    
Fair Value, Option, Quantitative Disclosures    
Market Risk Benefit, Measurement Input 0.2500 0.2500
Measurement Input, Withdrawal Rate | Minimum    
Fair Value, Option, Quantitative Disclosures    
Market Risk Benefit, Measurement Input 0.0000 0.0000
Embedded Derivative Liability, Measurement Input 0.0050 0.0050
Measurement Input, Withdrawal Rate | Maximum    
Fair Value, Option, Quantitative Disclosures    
Market Risk Benefit, Measurement Input 0.1000 0.1000
Embedded Derivative Liability, Measurement Input 0.0900 0.0900
Measurement Input, Long Term Equity Volatilities | Minimum    
Fair Value, Option, Quantitative Disclosures    
Market Risk Benefit, Measurement Input 0.1252 0.1999
Measurement Input, Long Term Equity Volatilities | Maximum    
Fair Value, Option, Quantitative Disclosures    
Market Risk Benefit, Measurement Input 0.2283 0.2845
Measurement Input, Entity Credit Risk | Minimum    
Fair Value, Option, Quantitative Disclosures    
Market Risk Benefit, Measurement Input 0.0086 (0.0273)
Embedded Derivative Liability, Measurement Input 0.0054 0.0000
Measurement Input, Entity Credit Risk | Maximum    
Fair Value, Option, Quantitative Disclosures    
Market Risk Benefit, Measurement Input 0.0208 0.0452
Embedded Derivative Liability, Measurement Input 0.0193 0.0198