v3.26.1
Segment Information - Schedule of Segment Information (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Segment Reporting Information [Line Items]          
Net sales $ 1,591 $ 1,615 $ 2,972 $ 2,983  
Segment selling, general, and administrative expense 469 424 616 547  
Segment research and development expense 27 28 53 55  
Depreciation and amortization 80 91 159 180  
Equity in earnings of affiliates 9 9 17 17  
Segment Adjusted EBITDA 287 304 501 527  
Total Assets 7,150   7,150   $ 7,382
Investments in affiliates 170   170   160
Purchases of property, plant, and equipment     93 127  
Thermal & Specialized Solutions [Member]          
Segment Reporting Information [Line Items]          
Segment Adjusted EBITDA 213 207 403 348  
Titanium Technologies [Member]          
Segment Reporting Information [Line Items]          
Segment Adjusted EBITDA 48 47 67 97  
Advanced Performance Materials [Member]          
Segment Reporting Information [Line Items]          
Segment Adjusted EBITDA 26 50 31 82  
Operating Segments [Member] | Thermal & Specialized Solutions [Member]          
Segment Reporting Information [Line Items]          
Net sales 591 597 1,158 1,063  
Segment cost of goods sold 360 377 724 689  
Segment selling, general, and administrative expense 30 26 59 51  
Segment research and development expense 8 7 15 15  
Depreciation and amortization 18 18 35 34  
Equity in earnings of affiliates 3 2 6 4  
Other segment items 1   (2) (2)  
Segment Adjusted EBITDA 213 207 403 348  
Total Assets 1,767   1,767   1,694
Investments in affiliates 71   71   73
Purchases of property, plant, and equipment     40 44  
Operating Segments [Member] | Titanium Technologies [Member]          
Segment Reporting Information [Line Items]          
Net sales 661 657 1,220 1,254  
Segment cost of goods sold 611 606 1,149 1,150  
Segment selling, general, and administrative expense 29 29 56 57  
Segment research and development expense 7 8 14 15  
Depreciation and amortization 33 32 67 64  
Other segment items (1) (1) 1 (1)  
Segment Adjusted EBITDA 48 47 67 97  
Total Assets 2,337   2,337   2,399
Purchases of property, plant, and equipment     25 57  
Operating Segments [Member] | Advanced Performance Materials [Member]          
Segment Reporting Information [Line Items]          
Net sales 326 346 569 639  
Segment cost of goods sold 289 282 526 533  
Segment selling, general, and administrative expense 34 34 67 67  
Segment research and development expense 12 12 23 24  
Depreciation and amortization 23 35 46 70  
Equity in earnings of affiliates 6 7 11 13  
Other segment items (6) 10 (21) 16  
Segment Adjusted EBITDA 26 $ 50 31 82  
Total Assets 1,681   1,681   1,677
Investments in affiliates $ 99   99   $ 87
Purchases of property, plant, and equipment     $ 25 $ 24