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Commitments and Contingencies - Summary of Approximate Percentage of TiO2 Sales by Volume (Detail) - Net Sales - Geographic Concentration Risk	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Europe [Member]
Schedule Of Net Sales By Geographical Segment [Line Items]
Approximate percent sales by volume	45.00%	46.00%	46.00%
North America [Member]
Schedule Of Net Sales By Geographical Segment [Line Items]
Approximate percent sales by volume	39.00%	37.00%	36.00%

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Schedule of net sales by geographical segment.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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