v3.26.1
Fair Value (Assets and Liabilities Measured - Quantitative Information) (Details) - Level 3
Mar. 31, 2026
Dec. 31, 2025
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 0.0786 0.0786
Measurement Input, Lapse Rate | Minimum    
Fair Value, Option, Quantitative Disclosures    
Market Risk Benefit, Measurement Input 0.0100 0.0100
Embedded Derivative Liability, Measurement Input 0.0040 0.0040
Measurement Input, Lapse Rate | Maximum    
Fair Value, Option, Quantitative Disclosures    
Market Risk Benefit, Measurement Input 0.1590 0.1590
Embedded Derivative Liability, Measurement Input 0.7500 0.7500
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 0.1490 0.1490
Measurement Input, Long Term Equity Volatilities | Minimum    
Fair Value, Option, Quantitative Disclosures    
Market Risk Benefit, Measurement Input 0.1182 0.1156
Measurement Input, Long Term Equity Volatilities | Maximum    
Fair Value, Option, Quantitative Disclosures    
Market Risk Benefit, Measurement Input 0.2980 0.3362
Measurement Input, Entity Credit Risk | Minimum    
Fair Value, Option, Quantitative Disclosures    
Market Risk Benefit, Measurement Input 0.0064 0.0045
Embedded Derivative Liability, Measurement Input 0.0070 0.0037
Measurement Input, Entity Credit Risk | Maximum    
Fair Value, Option, Quantitative Disclosures    
Market Risk Benefit, Measurement Input 0.0143 0.0102
Embedded Derivative Liability, Measurement Input 0.0198 0.0180