v3.25.2
Investments - Debt Maturities (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Mar. 31, 2025
Jun. 30, 2025
Dec. 31, 2024
Available-for-sale Securities Including Securities Pledged [Line Items]      
Fixed Maturities, single issuers in excess of total equity not not  
Embedded derivatives within fixed maturities      
Available-for-sale Securities Including Securities Pledged [Line Items]      
One year or less, Amortized Cost   $ 561  
After one year through five years, Amortized Cost   3,319  
After five years through ten years, Amortized Cost   2,839  
After ten years, Amortized Cost   9,520  
Debt Securities, Available-for-Sale, Amortized Cost   23,485 $ 22,163
One year or less, Fair Value   557  
After one year through five years, Fair Value   3,280  
After five years through ten years, Fair Value   2,766  
After ten years, Fair Value   8,367  
Debt Securities, Available-for-Sale, Excluding Accrued Interest   21,864 20,134
Mortgage-backed securities      
Available-for-sale Securities Including Securities Pledged [Line Items]      
Without single maturity date, Amortized Cost   5,236  
Without single maturity date, Fair Value   4,886  
Other asset-backed securities      
Available-for-sale Securities Including Securities Pledged [Line Items]      
Without single maturity date, Amortized Cost   2,010  
Debt Securities, Available-for-Sale, Amortized Cost   2,010 1,741
Without single maturity date, Fair Value   2,008  
Debt Securities, Available-for-Sale, Excluding Accrued Interest   $ 2,008 $ 1,739