Fair Value (Assets and Liabilities Measured - Quantitative Information) (Details) - Level 3	Sep. 30, 2024	Dec. 31, 2023
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	0.0924
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	0.2020	0.2280
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	0.0900
Measurement Input, Long Term Equity Volatilities | Minimum
Fair Value, Option, Quantitative Disclosures
Market Risk Benefit, Measurement Input	0.1188	0.1259
Measurement Input, Long Term Equity Volatilities | Maximum
Fair Value, Option, Quantitative Disclosures
Market Risk Benefit, Measurement Input	0.3383	0.2250
Measurement Input, Entity Credit Risk | Minimum
Fair Value, Option, Quantitative Disclosures
Market Risk Benefit, Measurement Input	0.0049	0.0076
Embedded Derivative Liability, Measurement Input	0.0034	0.0045
Measurement Input, Entity Credit Risk | Maximum
Fair Value, Option, Quantitative Disclosures
Market Risk Benefit, Measurement Input	0.0117	0.0163
Embedded Derivative Liability, Measurement Input	0.0164	0.0174