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Restructuring, Asset-Related, and Other Charges - Schedule of Restructuring Program (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended | 24 Months Ended
--- | --- | --- | ---
Mar. 31, 2023 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2024
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Employee separation charges |  | $ 19 | $ 25 | $ 9 |
Decommissioning and other charges |  | 14 | 31 | 2 |
Total restructuring and other charges |  | 33 | 56 | 11 |
Asset-related charges |  | 27 | 97 | 5 |
Total restructuring, asset-related, and other charges |  | 60 | 153 | 16 |
Titanium Technologies Transformation Plan [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Employee separation charges |  | (1) | 21 |  |
Decommissioning and other charges |  | 11 | 27 |  |
Asset-related charges |  |  | 78 |  |
Other Asset-related Charges |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Asset-related charges |  |  | 8 |  |
2023 Restructuring Program [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Employee separation charges |  |  | 4 |  | $ 4
2024 Restructuring Program [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Employee separation charges |  | 20 |  |  |
Decommissioning and other charges |  | 3 |  |  |
Asset-related charges |  | 27 |  |  |
2022 Restructuring Program [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Employee separation charges |  |  | (1) |  |
ERP Implementation Abandonment Charges [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Employee separation charges | $ 1 |  | 1 |  |
Decommissioning and other charges |  |  | 4 |  |
Asset-related charges |  |  | 11 |  |
Corporate [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Employee separation charges |  | 6 | 1 | 4 |
Decommissioning and other charges |  |  | 4 |  |
Total restructuring and other charges |  | 6 | 5 | 4 |
Asset-related charges |  |  | 12 |  |
Total restructuring, asset-related, and other charges |  | 6 | 17 | 4 |
Corporate [Member] | Titanium Technologies Transformation Plan [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Asset-related charges |  |  | 1 |  |
Corporate [Member] | 2023 Restructuring Program [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Employee separation charges |  |  | 1 |  | 1
Corporate [Member] | 2024 Restructuring Program [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Employee separation charges |  | 6 |  |  |
Corporate [Member] | 2022 Restructuring Program [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Employee separation charges |  |  | (1) |  |
Corporate [Member] | ERP Implementation Abandonment Charges [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Employee separation charges |  |  | 1 |  |
Decommissioning and other charges |  |  | 4 |  |
Asset-related charges |  |  | 11 |  |
Titanium Technologies [Member] | Operating Segments [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Employee separation charges |  | (1) | 21 | 1 |
Decommissioning and other charges |  | 11 | 27 |  |
Total restructuring and other charges |  | 10 | 48 | 1 |
Asset-related charges |  |  | 77 | 5 |
Total restructuring, asset-related, and other charges |  | 10 | 125 | 6 |
Titanium Technologies [Member] | Operating Segments [Member] | Titanium Technologies Transformation Plan [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Employee separation charges |  | (1) | 21 |  |
Decommissioning and other charges |  | 11 | 27 |  |
Asset-related charges |  |  | 77 |  |
Thermal & Specialized Solutions [Member] | Operating Segments [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Employee separation charges |  |  | 1 | 1 |
Total restructuring and other charges |  |  | 1 | 1 |
Asset-related charges |  |  | 8 |  |
Total restructuring, asset-related, and other charges |  |  | 9 | 1 |
Thermal & Specialized Solutions [Member] | Operating Segments [Member] | Other Asset-related Charges |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Asset-related charges |  |  | 8 |  |
Thermal & Specialized Solutions [Member] | Operating Segments [Member] | 2022 Restructuring Program [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Employee separation charges |  |  | 1 |  |
Advanced Performance Materials [Member] | 2023 Restructuring Program [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Employee separation charges |  |  |  |  | $ 3
Advanced Performance Materials [Member] | Operating Segments [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Employee separation charges |  | 14 | 2 | 3 |
Decommissioning and other charges |  | 3 |  |  |
Total restructuring and other charges |  | 17 | 2 | 3 |
Asset-related charges |  | 27 |  |  |
Total restructuring, asset-related, and other charges |  | 44 | 2 | 3 |
Advanced Performance Materials [Member] | Operating Segments [Member] | 2023 Restructuring Program [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Employee separation charges |  |  | 3 |  |
Advanced Performance Materials [Member] | Operating Segments [Member] | 2024 Restructuring Program [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Employee separation charges |  | 14 |  |  |
Decommissioning and other charges |  | 3 |  |  |
Asset-related charges |  | $ 27 |  |  |
Advanced Performance Materials [Member] | Operating Segments [Member] | 2022 Restructuring Program [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Employee separation charges |  |  | $ (1) |  |
Other Segment [Member] | Operating Segments [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Decommissioning and other charges |  |  |  | 2 |
Total restructuring and other charges |  |  |  | 2 |
Total restructuring, asset-related, and other charges |  |  |  | $ 2 |

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