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Balance Sheet Information - Supplemental Information on Balance Sheets (Detail) - USD ($)
$ in Millions
Jun. 30, 2020
Dec. 31, 2019
Inventories:    
Raw materials and supplies $ 280.4 $ 274.4
Work in process 81.3 72.2
Finished products 370.6 372.0
Total inventories 732.3 718.6
Property, plant and equipment, gross 1,985.7 1,982.5
Less: accumulated depreciation 1,191.5 1,158.3
Property, plant and equipment, net $ 794.2 $ 824.2