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Commitments and contingencies - Other Litigation and Other Matters - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) customer	Dec. 31, 2022	Dec. 31, 2021	Jan. 01, 2024 USD ($)
Component Products Segment | Customer Concentration Risk | Top Ten Customers | Net Sales
Commitments And Contingent Liabilities [Line Items]
Concentration risk percentage		52.00%	51.00%
Component Products [Member] | Customer Concentration Risk | One customer | Net Sales | Security Products Reporting Unit
Commitments And Contingent Liabilities [Line Items]
Concentration risk percentage	24.00%	14.00%	16.00%
Component Products [Member] | Customer Concentration Risk | One customer | Net Sales | Security Products Reporting Unit | Pilot project
Commitments And Contingent Liabilities [Line Items]
Concentration risk percentage	11.00%
Component Products [Member] | Customer Concentration Risk | One customer | Net Sales | Marine Components Reporting Unit
Commitments And Contingent Liabilities [Line Items]
Concentration risk percentage		12.00%
TiO2 | Chemicals
Commitments And Contingent Liabilities [Line Items]
Number of customers | customer	3,000
TiO2 | Chemicals | Product Concentration Risk [Member] | Net Sales
Commitments And Contingent Liabilities [Line Items]
Concentration risk percentage	90.00%	92.00%	92.00%
TiO2 | Chemicals | Customer Concentration Risk | Top Ten Customers | Net Sales
Commitments And Contingent Liabilities [Line Items]
Concentration risk percentage	35.00%	33.00%	32.00%
TiO2 | Chemicals | Customer Concentration Risk | One customer | Net Sales
Commitments And Contingent Liabilities [Line Items]
Concentration risk percentage	12.00%	10.00%
TiO2 | Chemicals | Geographic Concentration Risk | Europe | Net Sales
Commitments And Contingent Liabilities [Line Items]
Concentration risk percentage	44.00%	45.00%	46.00%
TiO2 | Chemicals | Geographic Concentration Risk | North America | Net Sales
Commitments And Contingent Liabilities [Line Items]
Concentration risk percentage	41.00%	39.00%	37.00%
Feedstock Ore | Chemicals
Commitments And Contingent Liabilities [Line Items]
Minimum purchase commitments				$ 583,000.0
Purchase obligation due in next fiscal year				$ 465.0
Other Supply And Service Contracts | Chemicals
Commitments And Contingent Liabilities [Line Items]
Minimum purchase commitments	$ 72.0
Purchase obligation due in next fiscal year	$ 38.0
Land Sales [Member] | Real Estate Management And Development [Member] | Customer Concentration Risk | One customer | Net Sales | Minimum [Member]
Commitments And Contingent Liabilities [Line Items]
Concentration risk percentage	10.00%	10.00%	10.00%
Land Sales [Member] | Real Estate Management And Development [Member] | Customer Concentration Risk | Second Customer | Net Sales | Minimum [Member]
Commitments And Contingent Liabilities [Line Items]
Concentration risk percentage		10.00%	10.00%
Land Sales [Member] | Real Estate Management And Development [Member] | Customer Concentration Risk | Third Customer | Net Sales | Minimum [Member]
Commitments And Contingent Liabilities [Line Items]
Concentration risk percentage			10.00%

X

- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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