v3.26.1
Investments - Schedule of Activity in Allowance for Credit Losses (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Debt Securities, Available-for-Sale, Allowance for Credit Loss [Roll Forward]        
Beginning balance $ 744 $ 709 $ 758 $ 709
Initial credit losses 1 42 2 45
Securities sold during the period (28) (5) (91) (13)
Additions (reductions) to previously impaired securities (13) 15 35 20
Ending balance 704 761 704 761
Nonrelated Party        
Debt Securities, Available-for-Sale, Allowance for Credit Loss [Roll Forward]        
Beginning balance 743 708 757 708
Initial credit losses 1 42 2 45
Securities sold during the period (28) (5) (91) (13)
Additions (reductions) to previously impaired securities (13) 15 35 20
Ending balance 703 760 703 760
Due to related parties        
Debt Securities, Available-for-Sale, Allowance for Credit Loss [Roll Forward]        
Beginning balance     1  
Ending balance 1   1  
Corporate | Nonrelated Party        
Debt Securities, Available-for-Sale, Allowance for Credit Loss [Roll Forward]        
Beginning balance 56 174 105 175
Initial credit losses 0 0 0 0
Securities sold during the period 0 0 (49) 0
Additions (reductions) to previously impaired securities (33) 0 (33) (1)
Ending balance 23 174 23 174
Corporate | Due to related parties        
Debt Securities, Available-for-Sale, Allowance for Credit Loss [Roll Forward]        
Beginning balance     0  
Ending balance 0   0  
ABS | Nonrelated Party        
Debt Securities, Available-for-Sale, Allowance for Credit Loss [Roll Forward]        
Beginning balance 179 82 171 76
Initial credit losses 0 39 0 40
Securities sold during the period 0 (2) 0 (3)
Additions (reductions) to previously impaired securities 6 11 14 17
Ending balance 185 130 185 130
ABS | Due to related parties        
Debt Securities, Available-for-Sale, Allowance for Credit Loss [Roll Forward]        
Beginning balance 1 1 1 1
Initial credit losses 0 0 0 0
Securities sold during the period 0 0 0 0
Additions (reductions) to previously impaired securities 0 0 0 0
Ending balance 1 1 1 1
CMBS | Nonrelated Party        
Debt Securities, Available-for-Sale, Allowance for Credit Loss [Roll Forward]        
Beginning balance 91 60 70 60
Initial credit losses 0 0 0 0
Securities sold during the period (24) 0 (24) 0
Additions (reductions) to previously impaired securities 11 2 32 2
Ending balance 78 62 78 62
CMBS | Due to related parties        
Debt Securities, Available-for-Sale, Allowance for Credit Loss [Roll Forward]        
Beginning balance     0  
Ending balance 0   0  
RMBS | Nonrelated Party        
Debt Securities, Available-for-Sale, Allowance for Credit Loss [Roll Forward]        
Beginning balance 417 392 411 397
Initial credit losses 1 3 2 5
Securities sold during the period (4) (3) (18) (10)
Additions (reductions) to previously impaired securities 3 2 22 2
Ending balance $ 417 $ 394 $ 417 $ 394