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Long-Term Debt (Tables)
9 Months Ended
Sep. 30, 2022
Debt Disclosure [Abstract]  
Components of Long Term Debt

December 31, 

September 30, 

    

2021

    

2022

(In millions)

Kronos International, Inc. 3.75% Senior Notes

$

448.8

$

390.2

Other

 

2.4

 

2.0

Total debt

 

451.2

 

392.2

Less current maturities

 

1.4

 

1.3

Total long-term debt

$

449.8

$

390.9