v3.26.1
Related Parties - Related party transactions with Blackstone (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Related Party Transaction [Line Items]        
Investment expenses $ 219 $ 184 $ 430 $ 369
Related Party        
Related Party Transaction [Line Items]        
Investment expenses $ 91 $ 80 $ 176 $ 156