v3.26.3
Fair Value - Schedule of Fair Value Measurements by Level (Details)
$ in Millions
Sep. 30, 2026
USD ($)
Dec. 31, 2025
USD ($)
Assets    
Cash equivalents $ 5,687 $ 5,184
Fixed maturity securities, available-for-sale: 26,558 27,005
Equity securities: 2,151 740
Other invested assets 11,508 10,839
Securities lending collateral 3,066 2,692
Derivatives - other assets 72 62
Total assets $ 37,542 $ 35,689
Percentage of total assets at fair value 1 1
Liabilities    
Derivatives - other liabilities $ (602) $ (28)
Total liabilities (602) (28)
United States Government securities    
Assets    
Fixed maturity securities, available-for-sale: 1,531 1,503
Government sponsored securities    
Assets    
Fixed maturity securities, available-for-sale: 32 81
Foreign government securities    
Assets    
Fixed maturity securities, available-for-sale: 14 13
States, municipalities and political subdivisions, tax-exempt    
Assets    
Fixed maturity securities, available-for-sale: 3,427 3,701
Corporate securities    
Assets    
Fixed maturity securities, available-for-sale: 13,403 13,783
Residential mortgage-backed securities    
Assets    
Fixed maturity securities, available-for-sale: 3,718 3,107
Commercial mortgage-backed securities    
Assets    
Fixed maturity securities, available-for-sale: 1,509 2,073
Other asset-backed securities    
Assets    
Fixed maturity securities, available-for-sale: 2,924 2,744
Exchange traded funds    
Assets    
Equity securities: 2,063 650
Common equity securities    
Assets    
Equity securities: 40 35
Other invested assets 8 6
Private equity securities    
Assets    
Equity securities: 48 55
Level I    
Assets    
Cash equivalents 5,687 5,184
Fixed maturity securities, available-for-sale: 0 0
Equity securities: 2,063 650
Securities lending collateral 0 0
Derivatives - other assets 0 0
Total assets $ 7,755 $ 5,840
Percentage of total assets at fair value 0.21 0.16
Liabilities    
Derivatives - other liabilities $ 0 $ 0
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 | Exchange traded funds    
Assets    
Equity securities: 2,063 650
Level I | Common equity securities    
Assets    
Equity securities: 0 0
Other invested assets 5 6
Level I | Private equity securities    
Assets    
Equity securities: 0 0
Level II    
Assets    
Cash equivalents 0 0
Fixed maturity securities, available-for-sale: 25,275 25,712
Equity securities: 40 35
Securities lending collateral 3,066 2,692
Derivatives - other assets 72 62
Total assets $ 28,453 $ 28,501
Percentage of total assets at fair value 0.76 0.80
Liabilities    
Derivatives - other liabilities $ (602) $ (28)
Total liabilities (602) (28)
Level II | United States Government securities    
Assets    
Fixed maturity securities, available-for-sale: 1,531 1,503
Level II | Government sponsored securities    
Assets    
Fixed maturity securities, available-for-sale: 32 81
Level II | Foreign government securities    
Assets    
Fixed maturity securities, available-for-sale: 14 13
Level II | States, municipalities and political subdivisions, tax-exempt    
Assets    
Fixed maturity securities, available-for-sale: 3,427 3,701
Level II | Corporate securities    
Assets    
Fixed maturity securities, available-for-sale: 13,006 13,373
Level II | Residential mortgage-backed securities    
Assets    
Fixed maturity securities, available-for-sale: 3,715 3,090
Level II | Commercial mortgage-backed securities    
Assets    
Fixed maturity securities, available-for-sale: 1,509 2,073
Level II | Other asset-backed securities    
Assets    
Fixed maturity securities, available-for-sale: 2,041 1,878
Level II | Exchange traded funds    
Assets    
Equity securities: 0 0
Level II | Common equity securities    
Assets    
Equity securities: 40 35
Other invested assets 0 0
Level II | Private equity securities    
Assets    
Equity securities: 0 0
Level III    
Assets    
Cash equivalents 0 0
Fixed maturity securities, available-for-sale: 1,283 1,293
Equity securities: 48 55
Securities lending collateral 0 0
Derivatives - other assets 0 0
Total assets $ 1,334 $ 1,348
Percentage of total assets at fair value 0.03 0.04
Liabilities    
Derivatives - other liabilities $ 0 $ 0
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: 397 410
Level III | Residential mortgage-backed securities    
Assets    
Fixed maturity securities, available-for-sale: 3 17
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: 883 866
Level III | Exchange traded funds    
Assets    
Equity securities: 0 0
Level III | Common equity securities    
Assets    
Equity securities: 0 0
Other invested assets 3 0
Level III | Private equity securities    
Assets    
Equity securities: $ 48 $ 55