v3.26.3
COLLATERALIZED REINSURANCE, TRUST AGREEMENTS AND OTHER RESTRICTED ASSETS - Narrative (Details) - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2026
Dec. 31, 2025
Effects of Reinsurance [Line Items]    
Restricted cash $ 75 $ 122
Mt Logan Re    
Effects of Reinsurance [Line Items]    
Percentage of voting common shares owned by group (in percent) 100.00%