v3.26.1
EQUITY SECURITIES - Schedule of Equity Securities by Market Sector Distribution (Details) - Equity securities - Market Sector
6 Months Ended 12 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Debt and Equity Securities, FV-NI [Line Items]    
Percentage 100.00% 100.00%
Consumer goods    
Debt and Equity Securities, FV-NI [Line Items]    
Percentage 5.00% 2.00%
Education    
Debt and Equity Securities, FV-NI [Line Items]    
Percentage 5.00% 4.00%
Energy and utilities    
Debt and Equity Securities, FV-NI [Line Items]    
Percentage 9.00% 8.00%
Finance    
Debt and Equity Securities, FV-NI [Line Items]    
Percentage 72.00% 74.00%
Healthcare    
Debt and Equity Securities, FV-NI [Line Items]    
Percentage 1.00% 1.00%
Industrials    
Debt and Equity Securities, FV-NI [Line Items]    
Percentage 2.00% 6.00%
Information technology    
Debt and Equity Securities, FV-NI [Line Items]    
Percentage 5.00% 4.00%
Other    
Debt and Equity Securities, FV-NI [Line Items]    
Percentage 1.00% 1.00%