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COMMITMENTS AND CONTINGENCIES (Asbestos-Related Matters of Union Carbide Corporation) (Table and Narrative) (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Loss Contingencies [Line Items]    
Liability for Asbestos and Environmental Claims, Gross $ 663 $ 708
Percentage of recorded asbestos liability related to pending claims 32.00%  
Percentage of recorded asbestos liability related to future claims 68.00%