v3.26.1
Segment Information - Schedule of Segment Information (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Segment Reporting Information [Line Items]      
Net sales $ 1,381 $ 1,368  
Segment selling, general, and administrative expense 147 123  
Segment research and development expense 26 27  
Depreciation and amortization 79 88  
Equity in earnings of affiliates 8 8  
Segment Adjusted EBITDA 213 223  
Total Assets 7,267   $ 7,382
Investments in affiliates 166   160
Purchases of property, plant, and equipment 49 84  
Thermal & Specialized Solutions [Member]      
Segment Reporting Information [Line Items]      
Segment Adjusted EBITDA 190 141  
Titanium Technologies [Member]      
Segment Reporting Information [Line Items]      
Segment Adjusted EBITDA 18 50  
Advanced Performance Materials [Member]      
Segment Reporting Information [Line Items]      
Segment Adjusted EBITDA 5 32  
Operating Segments [Member] | Thermal & Specialized Solutions [Member]      
Segment Reporting Information [Line Items]      
Net sales 568 466  
Segment cost of goods sold 364 312  
Segment selling, general, and administrative expense 29 25  
Segment research and development expense 7 7  
Depreciation and amortization 18 16  
Equity in earnings of affiliates 3 2  
Other segment items (1) (1)  
Segment Adjusted EBITDA 190 141  
Total Assets 1,799   1,694
Investments in affiliates 73   73
Purchases of property, plant, and equipment 20 33  
Operating Segments [Member] | Titanium Technologies [Member]      
Segment Reporting Information [Line Items]      
Net sales 559 597  
Segment cost of goods sold 538 544  
Segment selling, general, and administrative expense 28 28  
Segment research and development expense 7 7  
Depreciation and amortization 33 31  
Other segment items 1 (1)  
Segment Adjusted EBITDA 18 50  
Total Assets 2,333   2,399
Purchases of property, plant, and equipment 15 37  
Operating Segments [Member] | Advanced Performance Materials [Member]      
Segment Reporting Information [Line Items]      
Net sales 243 294  
Segment cost of goods sold 238 250  
Segment selling, general, and administrative expense 34 33  
Segment research and development expense 11 12  
Depreciation and amortization 23 35  
Equity in earnings of affiliates 5 6  
Other segment items (17) 8  
Segment Adjusted EBITDA 5 32  
Total Assets 1,674   1,677
Investments in affiliates 93   $ 87
Purchases of property, plant, and equipment $ 12 $ 13