v3.26.1
SEGMENTS AND GEOGRAPHIC INFORMATION - Reconciliation of Segment Reporting to Consolidated (Details)
6 Months Ended
Jun. 30, 2026
segment
SEGMENTS AND GEOGRAPHIC INFORMATION  
Number of operating segments 4
Number of reportable segments 4
AmSty  
SEGMENTS AND GEOGRAPHIC INFORMATION  
Percentage of ownership underlying net assets 50.00%
AmSty | Americas Styrenics  
SEGMENTS AND GEOGRAPHIC INFORMATION  
Percentage of ownership underlying net assets 50.00%