v3.24.1.u1
Fair Value Measurements - Quantitative Information about Level 3 Fair Value Measurements (Details)
$ in Millions
Mar. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Mar. 31, 2023
USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Bonds available-for-sale [1] $ 168,826 $ 166,527  
Embedded derivatives within Policyholder contract deposits 10,900 10,200  
Policyholder contract deposits 163,783 162,050 $ 158,025
Obligations of states, municipalities and political subdivisions      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Bonds available-for-sale $ 5,441 $ 5,831  
Obligations of states, municipalities and political subdivisions | Minimum | Yield      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.0510 0.0497  
Obligations of states, municipalities and political subdivisions | Maximum | Yield      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.0539 0.0531  
Obligations of states, municipalities and political subdivisions | Weighted-average | Yield      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.0524 0.0514  
Obligations of states, municipalities and political subdivisions | Level 3      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Bonds available-for-sale $ 806 $ 821  
Corporate debt      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Bonds available-for-sale $ 104,171 $ 106,082  
Corporate debt | Minimum | Yield      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.0527 0.0526  
Corporate debt | Maximum | Yield      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.0921 0.0816  
Corporate debt | Weighted-average | Yield      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.0724 0.0671  
Corporate debt | Level 3      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Bonds available-for-sale $ 1,581 $ 1,471  
RMBS      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Bonds available-for-sale $ 15,590 $ 14,277  
RMBS | Minimum | Yield      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.0563 0.0611  
RMBS | Minimum | Prepayment Speed      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.0434 0.0431  
RMBS | Minimum | Default Rate      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.0075 0.0073  
RMBS | Minimum | Loss Severity      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.3361 0.3064  
RMBS | Maximum | Yield      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.0701 0.0740  
RMBS | Maximum | Prepayment Speed      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.0996 0.0986  
RMBS | Maximum | Default Rate      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.0253 0.0252  
RMBS | Maximum | Loss Severity      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.8720 0.9103  
RMBS | Weighted-average | Yield      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.0632 0.0675  
RMBS | Weighted-average | Prepayment Speed      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.0715 0.0709  
RMBS | Weighted-average | Default Rate      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.0164 0.0163  
RMBS | Weighted-average | Loss Severity      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.6041 0.6083  
RMBS | Level 3      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Bonds available-for-sale $ 3,338 $ 3,315  
CLO | Minimum | Yield      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.0662 0.0606  
CLO | Maximum | Yield      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.0793 0.0781  
CLO | Weighted-average | Yield      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.0728 0.0693  
CLO | Level 3      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Bonds available-for-sale $ 1,709 $ 1,697  
ABS | Minimum | Yield      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.0575 0.0563  
ABS | Maximum | Yield      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.0779 0.0782  
ABS | Weighted-average | Yield      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.0677 0.0673  
ABS | Level 3      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Bonds available-for-sale $ 13,559 $ 11,367  
CMBS      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Bonds available-for-sale $ 10,302 $ 9,981  
CMBS | Minimum | Yield      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.0522 0.0549  
CMBS | Maximum | Yield      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.1777 0.1784  
CMBS | Weighted-average | Yield      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.1112 0.1166  
CMBS | Level 3      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Bonds available-for-sale $ 521 $ 565  
Market risk benefit assets | Minimum | Equity Volatility      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.0635 0.0625  
Market risk benefit assets | Minimum | Base lapse rate      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.0016 0.0016  
Market risk benefit assets | Minimum | Dynamic lapse multiplier      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.2000 0.2000  
Market risk benefit assets | Minimum | Mortality multiplier      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.3825 0.3825  
Market risk benefit assets | Minimum | Utilization      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.8000 0.8000  
Market risk benefit assets | Minimum | Equity / interest-rate correlation      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.0000 0.0000  
Market risk benefit assets | Minimum | NPA      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.0006 0.0000  
Market risk benefit assets | Maximum | Equity Volatility      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.4995 0.4975  
Market risk benefit assets | Maximum | Base lapse rate      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.2880 0.2880  
Market risk benefit assets | Maximum | Dynamic lapse multiplier      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 1.8618 1.8618  
Market risk benefit assets | Maximum | Mortality multiplier      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 1.6001 1.6001  
Market risk benefit assets | Maximum | Utilization      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 1.0000 1.0000  
Market risk benefit assets | Maximum | Equity / interest-rate correlation      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.3000 0.3000  
Market risk benefit assets | Maximum | NPA      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Debt securities, available-for-sale, measurement input 0.0233 0.0229  
Market risk benefit assets | Level 3      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Bonds available-for-sale $ 1,172 $ 912  
GMWB only | Minimum | Equity Volatility      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.0635 0.0625  
GMWB only | Minimum | Base lapse rate      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.0016 0.0016  
GMWB only | Minimum | Dynamic lapse multiplier      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.2000 0.2000  
GMWB only | Minimum | Mortality multiplier      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.3825 0.3825  
GMWB only | Minimum | Utilization      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.8000 0.8000  
GMWB only | Minimum | Equity / interest-rate correlation      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.0000 0.0000  
GMWB only | Minimum | NPA      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.0006 0.0000  
GMWB only | Maximum | Equity Volatility      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.4995 0.4975  
GMWB only | Maximum | Base lapse rate      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.2880 0.2880  
GMWB only | Maximum | Dynamic lapse multiplier      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 1.8618 1.8618  
GMWB only | Maximum | Mortality multiplier      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 1.6001 1.6001  
GMWB only | Maximum | Utilization      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 1.0000 1.0000  
GMWB only | Maximum | Equity / interest-rate correlation      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.3000 0.3000  
GMWB only | Maximum | NPA      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.0233 0.0229  
GMWB only | Level 3      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivatives within Policyholder contract deposits $ 1,675 $ 2,174  
Fixed annuities guaranteed benefits | Minimum | Base lapse rate      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.0020 0.0020  
Fixed annuities guaranteed benefits | Minimum | Dynamic lapse multiplier      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.2000 0.2000  
Fixed annuities guaranteed benefits | Minimum | Mortality multiplier      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.4026 0.4026  
Fixed annuities guaranteed benefits | Minimum | Utilization      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.9000 0.9000  
Fixed annuities guaranteed benefits | Minimum | NPA      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.0006 0.0000  
Fixed annuities guaranteed benefits | Maximum | Base lapse rate      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.1575 0.1575  
Fixed annuities guaranteed benefits | Maximum | Dynamic lapse multiplier      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 1.8618 1.8618  
Fixed annuities guaranteed benefits | Maximum | Mortality multiplier      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 1.6843 1.6843  
Fixed annuities guaranteed benefits | Maximum | Utilization      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.9750 0.9750  
Fixed annuities guaranteed benefits | Maximum | NPA      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.0233 0.0229  
Fixed annuities guaranteed benefits | Level 3      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivatives within Policyholder contract deposits $ 1,130 $ 1,111  
Fixed index annuities guaranteed benefits | Minimum | Equity Volatility      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.0635 0.0625  
Fixed index annuities guaranteed benefits | Minimum | Base lapse rate      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.0020 0.0020  
Fixed index annuities guaranteed benefits | Minimum | Dynamic lapse multiplier      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.2000 0.2000  
Fixed index annuities guaranteed benefits | Minimum | Mortality multiplier      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.2400 0.2400  
Fixed index annuities guaranteed benefits | Minimum | Utilization      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.6000 0.6000  
Fixed index annuities guaranteed benefits | Minimum | Option budget      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.0000 0.0000  
Fixed index annuities guaranteed benefits | Minimum | Equity / interest-rate correlation      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.0000 0.0000  
Fixed index annuities guaranteed benefits | Minimum | NPA      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.0006 0.0000  
Fixed index annuities guaranteed benefits | Maximum | Equity Volatility      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.4995 0.4975  
Fixed index annuities guaranteed benefits | Maximum | Base lapse rate      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.5000 0.5000  
Fixed index annuities guaranteed benefits | Maximum | Dynamic lapse multiplier      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 1.8618 1.8618  
Fixed index annuities guaranteed benefits | Maximum | Mortality multiplier      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 1.4600 1.4600  
Fixed index annuities guaranteed benefits | Maximum | Utilization      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.9750 0.9750  
Fixed index annuities guaranteed benefits | Maximum | Option budget      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.0600 0.0600  
Fixed index annuities guaranteed benefits | Maximum | Equity / interest-rate correlation      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.3000 0.3000  
Fixed index annuities guaranteed benefits | Maximum | NPA      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.0233 0.0229  
Fixed index annuities guaranteed benefits | Level 3      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivatives within Policyholder contract deposits $ 2,362 $ 2,420  
Index credits on fixed index annuities      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Policyholder contract deposits $ 1,700 $ 1,500  
Index credits on fixed index annuities | Minimum | Equity Volatility      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.0635 0.0625  
Index credits on fixed index annuities | Minimum | Base lapse rate      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.0020 0.0020  
Index credits on fixed index annuities | Minimum | Dynamic lapse multiplier      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.2000 0.2000  
Index credits on fixed index annuities | Minimum | Mortality multiplier      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.2400 0.2400  
Index credits on fixed index annuities | Minimum | Utilization      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.6000 0.6000  
Index credits on fixed index annuities | Minimum | Option budget      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.0000 0.0000  
Index credits on fixed index annuities | Minimum | Equity / interest-rate correlation      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.0000 0.0000  
Index credits on fixed index annuities | Minimum | NPA      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.0006 0.0000  
Index credits on fixed index annuities | Maximum | Equity Volatility      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.4995 0.4975  
Index credits on fixed index annuities | Maximum | Base lapse rate      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.5000 0.5000  
Index credits on fixed index annuities | Maximum | Dynamic lapse multiplier      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 1.8618 1.8618  
Index credits on fixed index annuities | Maximum | Mortality multiplier      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 1.4600 1.4600  
Index credits on fixed index annuities | Maximum | Utilization      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.9750 0.9750  
Index credits on fixed index annuities | Maximum | Option budget      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.0600 0.0600  
Index credits on fixed index annuities | Maximum | Equity / interest-rate correlation      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.3000 0.3000  
Index credits on fixed index annuities | Maximum | NPA      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.0233 0.0229  
Index credits on fixed index annuities | Level 3      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivatives within Policyholder contract deposits $ 7,603 $ 6,953  
Index universal life | Minimum | Equity Volatility      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.0585 0.0585  
Index universal life | Minimum | Base lapse rate      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.0000 0.0000  
Index universal life | Minimum | Mortality rates      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.0000 0.0000  
Index universal life | Minimum | NPA      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.0006 0.0000  
Index universal life | Maximum | Equity Volatility      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.1995 0.2036  
Index universal life | Maximum | Base lapse rate      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.3797 0.3797  
Index universal life | Maximum | Mortality rates      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 1.0000 1.0000  
Index universal life | Maximum | NPA      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivative liability, measurement input 0.0233 0.0229  
Index universal life | Level 3      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Embedded derivatives within Policyholder contract deposits $ 947 $ 989  
[1] See Note 9 for details of balances associated with variable interest entities