v3.24.2
Fair Value - Summary of Fair Value Measurements by Level (Details)
$ in Millions
Jun. 30, 2024
USD ($)
Dec. 31, 2023
USD ($)
Assets    
Cash equivalents $ 1,508 $ 2,210
Fixed maturity securities, available-for-sale: 29,749 30,490
Other invested assets 6,810 6,107
Securities lending collateral 2,701 2,382
Total assets $ 34,577 $ 35,432
Percentage of total assets at fair value 1 1
Liabilities    
Total liabilities $ (55) $ (40)
United States Government securities    
Assets    
Fixed maturity securities, available-for-sale: 1,713 1,844
Government sponsored securities    
Assets    
Fixed maturity securities, available-for-sale: 125 110
Foreign government securities    
Assets    
Fixed maturity securities, available-for-sale: 69 4
States, municipalities and political subdivisions, tax-exempt    
Assets    
Fixed maturity securities, available-for-sale: 3,519 3,902
Corporate securities    
Assets    
Fixed maturity securities, available-for-sale: 15,628 14,578
Residential mortgage-backed securities    
Assets    
Fixed maturity securities, available-for-sale: 3,860 3,832
Commercial mortgage-backed securities    
Assets    
Fixed maturity securities, available-for-sale: 1,892 2,047
Other asset-backed securities    
Assets    
Fixed maturity securities, available-for-sale: 2,943 4,173
Equity securities:    
Assets    
Equity securities: 594 229
Equity securities: | Exchange traded funds    
Assets    
Equity securities: 481 106
Equity securities: | Common equity securities    
Assets    
Equity securities: 35 45
Equity securities: | Private equity securities    
Assets    
Equity securities: 78 78
Other investments: | Common equity securities    
Assets    
Other invested assets 19 111
Derivatives    
Assets    
Derivatives - other assets 6 10
Liabilities    
Derivatives - other liabilities (55) (40)
Level I    
Assets    
Cash equivalents 1,508 2,210
Fixed maturity securities, available-for-sale: 0 0
Securities lending collateral 0 0
Total assets $ 2,021 $ 2,439
Percentage of total assets at fair value 0.06 0.07
Liabilities    
Total liabilities $ 0 $ 0
Level I | United States Government securities    
Assets    
Fixed maturity securities, available-for-sale: 0 0
Level I | Government sponsored securities    
Assets    
Fixed maturity securities, available-for-sale: 0 0
Level I | Foreign government securities    
Assets    
Fixed maturity securities, available-for-sale: 0 0
Level I | States, municipalities and political subdivisions, tax-exempt    
Assets    
Fixed maturity securities, available-for-sale: 0 0
Level I | Corporate securities    
Assets    
Fixed maturity securities, available-for-sale: 0 0
Level I | Residential mortgage-backed securities    
Assets    
Fixed maturity securities, available-for-sale: 0 0
Level I | Commercial mortgage-backed securities    
Assets    
Fixed maturity securities, available-for-sale: 0 0
Level I | Other asset-backed securities    
Assets    
Fixed maturity securities, available-for-sale: 0 0
Level I | Equity securities:    
Assets    
Equity securities: 494 118
Level I | Equity securities: | Exchange traded funds    
Assets    
Equity securities: 481 106
Level I | Equity securities: | Common equity securities    
Assets    
Equity securities: 13 12
Level I | Equity securities: | Private equity securities    
Assets    
Equity securities: 0 0
Level I | Other investments: | Common equity securities    
Assets    
Other invested assets 19 111
Level I | Derivatives    
Assets    
Derivatives - other assets 0 0
Liabilities    
Derivatives - other liabilities 0 0
Level II    
Assets    
Cash equivalents 0 0
Fixed maturity securities, available-for-sale: 28,913 29,903
Securities lending collateral 2,701 2,382
Total assets $ 31,642 $ 32,328
Percentage of total assets at fair value 0.92 0.91
Liabilities    
Total liabilities $ (55) $ (40)
Level II | United States Government securities    
Assets    
Fixed maturity securities, available-for-sale: 1,713 1,844
Level II | Government sponsored securities    
Assets    
Fixed maturity securities, available-for-sale: 125 110
Level II | Foreign government securities    
Assets    
Fixed maturity securities, available-for-sale: 69 4
Level II | States, municipalities and political subdivisions, tax-exempt    
Assets    
Fixed maturity securities, available-for-sale: 3,519 3,902
Level II | Corporate securities    
Assets    
Fixed maturity securities, available-for-sale: 15,566 14,532
Level II | Residential mortgage-backed securities    
Assets    
Fixed maturity securities, available-for-sale: 3,853 3,830
Level II | Commercial mortgage-backed securities    
Assets    
Fixed maturity securities, available-for-sale: 1,892 2,047
Level II | Other asset-backed securities    
Assets    
Fixed maturity securities, available-for-sale: 2,176 3,634
Level II | Equity securities:    
Assets    
Equity securities: 22 33
Level II | Equity securities: | Exchange traded funds    
Assets    
Equity securities: 0 0
Level II | Equity securities: | Common equity securities    
Assets    
Equity securities: 22 33
Level II | Equity securities: | Private equity securities    
Assets    
Equity securities: 0 0
Level II | Other investments: | Common equity securities    
Assets    
Other invested assets 0 0
Level II | Derivatives    
Assets    
Derivatives - other assets 6 10
Liabilities    
Derivatives - other liabilities (55) (40)
Level III    
Assets    
Cash equivalents 0 0
Fixed maturity securities, available-for-sale: 836 587
Securities lending collateral 0 0
Total assets $ 914 $ 665
Percentage of total assets at fair value 0.02 0.02
Liabilities    
Total liabilities $ 0 $ 0
Level III | United States Government securities    
Assets    
Fixed maturity securities, available-for-sale: 0 0
Level III | Government sponsored securities    
Assets    
Fixed maturity securities, available-for-sale: 0 0
Level III | Foreign government securities    
Assets    
Fixed maturity securities, available-for-sale: 0 0
Level III | States, municipalities and political subdivisions, tax-exempt    
Assets    
Fixed maturity securities, available-for-sale: 0 0
Level III | Corporate securities    
Assets    
Fixed maturity securities, available-for-sale: 62 46
Level III | Residential mortgage-backed securities    
Assets    
Fixed maturity securities, available-for-sale: 7 2
Level III | Commercial mortgage-backed securities    
Assets    
Fixed maturity securities, available-for-sale: 0 0
Level III | Other asset-backed securities    
Assets    
Fixed maturity securities, available-for-sale: 767 539
Level III | Equity securities:    
Assets    
Equity securities: 78 78
Level III | Equity securities: | Exchange traded funds    
Assets    
Equity securities: 0 0
Level III | Equity securities: | Common equity securities    
Assets    
Equity securities: 0 0
Level III | Equity securities: | Private equity securities    
Assets    
Equity securities: 78 78
Level III | Other investments: | Common equity securities    
Assets    
Other invested assets 0 0
Level III | Derivatives    
Assets    
Derivatives - other assets 0 0
Liabilities    
Derivatives - other liabilities $ 0 $ 0