v3.26.1
Investments - Schedule of Activity in Allowance for Credit Losses (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Debt Securities, Available-for-Sale, Allowance for Credit Loss [Roll Forward]    
Beginning balance $ 758 $ 709
Initial credit losses 1 3
Securities sold during the period (63) (8)
Additions (reductions) to previously impaired securities 48 5
Ending balance 744 709
Nonrelated Party    
Debt Securities, Available-for-Sale, Allowance for Credit Loss [Roll Forward]    
Beginning balance 757 708
Initial credit losses 1 3
Securities sold during the period (63) (8)
Additions (reductions) to previously impaired securities 48 5
Ending balance 743 708
Due to related parties    
Debt Securities, Available-for-Sale, Allowance for Credit Loss [Roll Forward]    
Beginning balance 1  
Ending balance 1  
Corporate | Nonrelated Party    
Debt Securities, Available-for-Sale, Allowance for Credit Loss [Roll Forward]    
Beginning balance 105 175
Initial credit losses 0 0
Securities sold during the period (49) 0
Additions (reductions) to previously impaired securities 0 (1)
Ending balance 56 174
Corporate | Due to related parties    
Debt Securities, Available-for-Sale, Allowance for Credit Loss [Roll Forward]    
Beginning balance 0  
Ending balance 0  
ABS | Nonrelated Party    
Debt Securities, Available-for-Sale, Allowance for Credit Loss [Roll Forward]    
Beginning balance 171 76
Initial credit losses 0 1
Securities sold during the period 0 (1)
Additions (reductions) to previously impaired securities 8 6
Ending balance 179 82
ABS | Due to related parties    
Debt Securities, Available-for-Sale, Allowance for Credit Loss [Roll Forward]    
Beginning balance 1 1
Initial credit losses 0 0
Securities sold during the period 0 0
Additions (reductions) to previously impaired securities 0 0
Ending balance 1 1
CMBS | Nonrelated Party    
Debt Securities, Available-for-Sale, Allowance for Credit Loss [Roll Forward]    
Beginning balance 70 60
Initial credit losses 0 0
Securities sold during the period 0 0
Additions (reductions) to previously impaired securities 21 0
Ending balance 91 60
CMBS | Due to related parties    
Debt Securities, Available-for-Sale, Allowance for Credit Loss [Roll Forward]    
Beginning balance 0  
Ending balance 0  
RMBS | Nonrelated Party    
Debt Securities, Available-for-Sale, Allowance for Credit Loss [Roll Forward]    
Beginning balance 411 397
Initial credit losses 1 2
Securities sold during the period (14) (7)
Additions (reductions) to previously impaired securities 19 0
Ending balance $ 417 $ 392