Valhi Stockholders' Equity - Schedule of Common Stock Outstanding (Details) - shares shares in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
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| Schedule Of Stockholders Equity [Line Items] | |||
| Common stock, shares issued | 29.6 | 29.6 | 29.6 |
| Shares of common stock, Treasury | (1.1) | (1.1) | (1.1) |
| Common stock, shares outstanding | 29.6 | 29.6 | |
| Excluding Stock Ownership By Subsidiary Considered To Be Held In Treasury | |||
| Schedule Of Stockholders Equity [Line Items] | |||
| Common stock, shares outstanding | 28.5 | 28.5 | 28.5 |
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- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of previously issued common shares repurchased by the issuing entity and held in treasury. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Schedule of stockholders equity. No definition available.
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- Details
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