v3.26.1
REVENUE RECOGNITION - Narrative (Details) - CMS - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Effects of Reinsurance [Line Items]          
Premium subsidies earned to direct policy premiums (as percent) 90.00% 93.00% 91.00% 93.00%  
Advanced premium tax credit payable $ 1,100.0   $ 1,100.0   $ 138.1