v3.26.1
Segment Information - Reconciliation of Segment Adjusted EBITDA from Segments to Consolidated Income Before Income Taxes (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Segment, Reconciliation of Other Items from Segments to Consolidated [Line Items]        
Segment Adjusted EBITDA $ 287 $ 304 $ 501 $ 527
Other non-reportable segment Adjusted EBITDA 2 4 5 5
Corporate expenses (42) (46) (90) (103)
Interest expense, net (68) (67) (137) (133)
Depreciation and amortization (80) (91) (159) (180)
Non-operating pension and other post-retirement employee benefit income 3 2 5 4
Exchange losses, net (1) (4) (1) (7)
Restructuring, asset-related, and other charges (3) (6) (16) (27)
Inventory write-offs   (2)   (2)
Loss on extinguishment of debt (2) 0 (11) 0
Gain on sales of assets and businesses, net 266 0 266 1
Transaction costs   (2) (2) (3)
Qualified spend recovery 6 13 11 22
Litigation-related charges (225) (293) (244) (293)
Environmental charges (144) (60) (150) (60)
Loss before income taxes (1) (248) (22) (249)
Titanium Technologies [Member]        
Segment, Reconciliation of Other Items from Segments to Consolidated [Line Items]        
Segment Adjusted EBITDA 48 47 67 97
Thermal & Specialized Solutions [Member]        
Segment, Reconciliation of Other Items from Segments to Consolidated [Line Items]        
Segment Adjusted EBITDA 213 207 403 348
Advanced Performance Materials [Member]        
Segment, Reconciliation of Other Items from Segments to Consolidated [Line Items]        
Segment Adjusted EBITDA $ 26 $ 50 $ 31 $ 82