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Investment in TiO2 Manufacturing Joint Venture - Summary of Income Statements of LPC (Detail) - Louisiana Pigment Company, L.P. - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Revenues and other income: |  |  |
Total revenues and other income | $ 315.4 | $ 339.0 | $ 386.9
Cost and expenses: |  |  |
Cost of sales | 314.9 | 338.5 | 386.4
General and administrative | 0.5 | 0.5 | 0.5
Total costs and expenses | 315.4 | 339.0 | 386.9
Kronos |  |  |
Revenues and other income: |  |  |
Total revenues and other income | 157.9 | 176.5 | 193.1
HPA |  |  |
Revenues and other income: |  |  |
Total revenues and other income | $ 157.5 | $ 162.5 | $ 193.8

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