Fair Value (Assets and Liabilities Measured - Quantitative Information) (Details) - Level 3	Mar. 31, 2025	Dec. 31, 2024
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	0.0100	0.0100
Measurement Input, Lapse Rate | Maximum
Fair Value, Option, Quantitative Disclosures
Market Risk Benefit, Measurement Input	0.2020	0.2020
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	0.1300	0.1300
Measurement Input, Long Term Equity Volatilities | Minimum
Fair Value, Option, Quantitative Disclosures
Market Risk Benefit, Measurement Input	0.1225	0.1222
Measurement Input, Long Term Equity Volatilities | Maximum
Fair Value, Option, Quantitative Disclosures
Market Risk Benefit, Measurement Input	0.2289	0.3704
Measurement Input, Entity Credit Risk | Minimum
Fair Value, Option, Quantitative Disclosures
Market Risk Benefit, Measurement Input	0.0045	0.0020
Embedded Derivative Liability, Measurement Input	0.0021	0.0030
Measurement Input, Entity Credit Risk | Maximum
Fair Value, Option, Quantitative Disclosures
Market Risk Benefit, Measurement Input	0.0148	0.0119
Embedded Derivative Liability, Measurement Input	0.0175	0.0163