v3.25.1
Related Party Transactions - Income Statement (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
REVENUES    
Net investment income [1] $ 148 $ 160
Fair value changes in trading securities, funds held and other investments [1] 43 85
Total revenues 204 253
EXPENSES    
Net incurred losses and LAE [1] (16) (19)
Income (losses) from equity method investments [1] 4 (5)
NET INCOME 59 128
Investor | Stone Point    
REVENUES    
Net investment income 2 2
Fair value changes in trading securities, funds held and other investments 4 26
Total revenues 6 28
EXPENSES    
Costs and Expenses 0 0
NET INCOME 6 28
Investee | Monument    
REVENUES    
Total revenues 0 0
EXPENSES    
Costs and Expenses 0 0
Income (losses) from equity method investments   (30)
NET INCOME 0 (30)
Investee | AmTrust    
REVENUES    
Net investment income 2 2
Fair value changes in trading securities, funds held and other investments (3) (2)
Total revenues (1) 0
EXPENSES    
Costs and Expenses 0 0
NET INCOME (1) 0
Investee | Core Specialty    
REVENUES    
Total revenues 0 0
EXPENSES    
Net incurred losses and LAE 10 23
Costs and Expenses 10 23
Income (losses) from equity method investments 4 26
NET INCOME (6) 3
Investee | Other    
REVENUES    
Net investment income 3 3
Fair value changes in trading securities, funds held and other investments 16 12
Total revenues 19 15
EXPENSES    
Costs and Expenses 0 0
Income (losses) from equity method investments   (1)
NET INCOME $ 19 $ 14
[1] See Note 17 for additional information regarding related party transactions.