v3.26.3
Related Parties - Related party transactions with Blackstone (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Related Party Transaction [Line Items]        
Investment expenses $ 209 $ 186 $ 639 $ 555
Related Party        
Related Party Transaction [Line Items]        
Investment expenses $ 86 $ 83 $ 262 $ 239