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Noncontrolling interest in subsidiaries
12 Months Ended
Dec. 31, 2021
Noncontrolling Interest [Abstract]  
Noncontrolling interest in subsidiaries

Note 15 – Noncontrolling interest in subsidiaries:

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​

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December 31, 

​

    

2020

    

2021

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(In millions)

Noncontrolling interest in net assets:

 

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​

  

Kronos Worldwide

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$

212.3

​

$

226.6

NL Industries

​

 

67.1

​

 

75.7

CompX International

​

 

23.5

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22.5

BMI

​

 

14.7

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8.3

LandWell

​

 

6.8

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(4.2)

Total

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$

324.4

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$

328.9

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​

​

​

​

​

​

​

​

​

​

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Years ended December 31, 

​

    

2019

    

2020

    

2021

​

​

(In millions)

Noncontrolling interest in net income of subsidiaries:

 

​

  

 

​

  

 

​

  

Kronos Worldwide

​

$

16.9

​

$

12.1

​

$

22.0

NL Industries

​

 

4.4

​

 

2.5

​

 

8.7

CompX International

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2.2

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1.4

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2.2

BMI

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2.2

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7.6

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14.7

LandWell

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3.3

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10.2

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22.9

Total

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$

29.0

​

$

33.8

​

$

70.5

​