Commitments and Contingencies - Other Litigation - Additional Information (Detail) - Product Liability And Occupational Exposure Litigation Claims - NL	3 Months Ended
	Mar. 31, 2016 Cases Plaintiff
Commitments And Contingent Liabilities [Line Items]
Cases pending | Cases	102
Pending Claims
Commitments And Contingent Liabilities [Line Items]
Number of plaintiffs involved	588
Administratively Dismissed Claims
Commitments And Contingent Liabilities [Line Items]
Number of plaintiffs involved	8,692