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v3.23.1

Noncontrolling Interest in Subsidiaries (Tables) | 3 Months Ended
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Mar. 31, 2023
Noncontrolling Interest [Abstract] |
Noncontrolling Interest in Net Assets of Subsidiaries | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, | ​ | March 31,
​ |  | 2022 |  | 2023
​ |  | (In millions)
Noncontrolling interest in net assets: |  | ​ |  |  | ​ |
Kronos Worldwide | ​ | $ | 239.3 | ​ | $ | 230.6
NL Industries | ​ |  | 79.0 | ​ |  | 77.0
CompX International | ​ |  | 20.6 | ​ |  | 21.0
BMI | ​ |  | 6.9 | ​ |  | 8.6
LandWell | ​ |  | 2.4 | ​ |  | 5.2
Total | ​ | $ | 348.2 | ​ | $ | 342.4
​
Schedule of Noncontrolling Interest in Net Income of Subsidiaries | ​

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- Definition Schedule of noncontrolling interest in net income loss of subsidiaries. + References No definition available. + Details
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