Commitments and Contingencies - Lead Pigment Litigation-NL and Environmental Matters and Litigation - Additional Information (Detail) $ in Millions	6 Months Ended
	Jun. 30, 2022 USD ($) site installment case	Dec. 31, 2021 USD ($)
Commitments And Contingent Liabilities [Line Items]
Accrual for reasonably estimable environmental remediation and related matters	$ 98.1	$ 97.6
Other Environmental Cleanup Matters
Commitments And Contingent Liabilities [Line Items]
Accrual for reasonably estimable environmental remediation and related matters	5.0
NL | Environmental Remediation Sites NL Named As PRP Or Defendant
Commitments And Contingent Liabilities [Line Items]
Accrual for reasonably estimable environmental remediation and related matters	$ 93.0
Number of sites associated with remediation and related costs | site	33
Number of sites for which NL not currently able to reasonably estimate range of costs | site	5
NL | Maximum | Environmental Remediation Sites NL Named As PRP Or Defendant
Commitments And Contingent Liabilities [Line Items]
Upper end range, estimate costs for remediation and related matters	$ 118.0
Lead Pigment Litigation | NL
Commitments And Contingent Liabilities [Line Items]
Number of cases settled and dismissed and found not liable | case	100
Period by which loss contingency claims settled and dismissed	30 years
C A Lead Paint Litigation | NL
Commitments And Contingent Liabilities [Line Items]
Number of annual installment payments | installment	4
Remaining litigation settlement charge due in first installment	$ 12.0
Remaining litigation settlement charge due in second installment	12.0
Remaining litigation settlement charge due in third installment	12.0
Remaining litigation settlement charge due in fourth installment	$ 16.7