v3.25.4
Long-duration Contracts - Schedule of Unobservable Inputs for Market Risk Benefits (Details)
$ in Millions
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Market Risk Benefit [Line Items]        
Market risk benefits, net $ 4,716 $ 3,715 $ 3,373 $ 2,489
Minimum | Nonperformance risk | Discounted cash flow        
Market Risk Benefit [Line Items]        
Market risk benefits, measurement input (as percent) 0.004 0.004 0.004  
Minimum | Option budget | Discounted cash flow        
Market Risk Benefit [Line Items]        
Market risk benefits, measurement input (as percent) 0.005 0.005 0.005  
Minimum | Surrender rate | Discounted cash flow        
Market Risk Benefit [Line Items]        
Market risk benefits, measurement input (as percent) 0.038 0.033 0.032  
Minimum | Utilization rate | Discounted cash flow        
Market Risk Benefit [Line Items]        
Market risk benefits, measurement input (as percent) 0.286 0.286 0.286  
Maximum | Nonperformance risk | Discounted cash flow        
Market Risk Benefit [Line Items]        
Market risk benefits, measurement input (as percent) 0.010 0.011 0.014  
Maximum | Option budget | Discounted cash flow        
Market Risk Benefit [Line Items]        
Market risk benefits, measurement input (as percent) 0.059 0.060 0.060  
Maximum | Surrender rate | Discounted cash flow        
Market Risk Benefit [Line Items]        
Market risk benefits, measurement input (as percent) 0.079 0.072 0.064  
Maximum | Utilization rate | Discounted cash flow        
Market Risk Benefit [Line Items]        
Market risk benefits, measurement input (as percent) 0.950 0.950 0.950  
Weighted Average | Nonperformance risk | Discounted cash flow        
Market Risk Benefit [Line Items]        
Market risk benefits, measurement input (as percent) 0.009 0.010 0.012  
Weighted Average | Option budget | Discounted cash flow        
Market Risk Benefit [Line Items]        
Market risk benefits, measurement input (as percent) 0.026 0.023 0.019  
Weighted Average | Surrender rate | Discounted cash flow        
Market Risk Benefit [Line Items]        
Market risk benefits, measurement input (as percent) 0.052 0.046 0.045  
Weighted Average | Utilization rate | Discounted cash flow        
Market Risk Benefit [Line Items]        
Market risk benefits, measurement input (as percent) 0.863 0.849 0.836