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Long-Term Debt - Long-Term Debt (Detail) - USD ($) $ in Millions | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Long-term debt |  |
Total debt | $ 540.2 | $ 653.0
Less current maturities | (2.0) | (3.1)
Total long-term debt | 538.2 | 649.9
VALHI, INC. | Contran Credit Facility |  |
Long-term debt |  |
Total debt | 134.8 | 172.9
Kronos Worldwide, Inc. | 3.75% Senior Secured Notes due September 15, 2025 | Kronos International, Inc |  |
Long-term debt |  |
Total debt | 390.2 | 448.8
BMI | Bank loan | Western Alliance Bank |  |
Long-term debt |  |
Total debt |  | 15.4
LandWell | Unsecured Debt | Western Alliance Bank |  |
Long-term debt |  |
Total debt | 13.2 | 13.5
Other Subsidiary | Other |  |
Long-term debt |  |
Total debt | 2.0 | 2.4
Subsidiary |  |
Long-term debt |  |
Total debt | $ 405.4 | $ 480.1

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