v3.26.1
Investments - Schedule of Mortgage Loans Amortized Cost by Debt Service Coverage Ratio Distribution and Year of Origination (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost, net $ 842 $ 879
Commercial    
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost, net 548 619
Mortgage loans    
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost before allowance 855 889
Mortgage loans | Commercial    
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost before allowance 558 628
Allowance (10) (9)
Amortized cost, net 548 619
Mortgage loans | 1.0 - 1.25 | Commercial    
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost before allowance 43 71
Mortgage loans | 1.26 - 1.50 | Commercial    
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost before allowance 63 95
Mortgage loans | Above 1.50 | Commercial    
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost before allowance 452 $ 462
2021 and prior | Mortgage loans | Commercial    
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost before allowance 383  
2021 and prior | Mortgage loans | 1.0 - 1.25 | Commercial    
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost before allowance 10  
2021 and prior | Mortgage loans | 1.26 - 1.50 | Commercial    
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost before allowance 34  
2021 and prior | Mortgage loans | Above 1.50 | Commercial    
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost before allowance 339  
2022 | Mortgage loans | Commercial    
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost before allowance 71  
2022 | Mortgage loans | 1.0 - 1.25 | Commercial    
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost before allowance 0  
2022 | Mortgage loans | 1.26 - 1.50 | Commercial    
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost before allowance 0  
2022 | Mortgage loans | Above 1.50 | Commercial    
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost before allowance 71  
2023 | Mortgage loans | Commercial    
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost before allowance 56  
2023 | Mortgage loans | 1.0 - 1.25 | Commercial    
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost before allowance 0  
2023 | Mortgage loans | 1.26 - 1.50 | Commercial    
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost before allowance 29  
2023 | Mortgage loans | Above 1.50 | Commercial    
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost before allowance 27  
2024 | Mortgage loans | Commercial    
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost before allowance 48  
2024 | Mortgage loans | 1.0 - 1.25 | Commercial    
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost before allowance 33  
2024 | Mortgage loans | 1.26 - 1.50 | Commercial    
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost before allowance 0  
2024 | Mortgage loans | Above 1.50 | Commercial    
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost before allowance 15  
2025 | Mortgage loans | Commercial    
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost before allowance 0  
2025 | Mortgage loans | 1.0 - 1.25 | Commercial    
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost before allowance 0  
2025 | Mortgage loans | 1.26 - 1.50 | Commercial    
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost before allowance 0  
2025 | Mortgage loans | Above 1.50 | Commercial    
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost before allowance 0  
2026 | Mortgage loans | Commercial    
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost before allowance 0  
2026 | Mortgage loans | 1.0 - 1.25 | Commercial    
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost before allowance 0  
2026 | Mortgage loans | 1.26 - 1.50 | Commercial    
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost before allowance 0  
2026 | Mortgage loans | Above 1.50 | Commercial    
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost before allowance $ 0