Discontinued Operations and Divestitures - Schedule of Major Classes of Assets and Liabilities Held for Sale (Detail) - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 2016
Discontinued Operations and Disposal Groups [Abstract]
Accounts receivable, net	$ 41.8	$ 164.4
Inventories, net	144.8	311.6
Prepaid expenses and other	23.0	24.3
Property, plant and equipment, net	84.8	224.9
Goodwill	23.7	762.5
Other intangible assets	28.0	244.5
Other assets	13.1	13.5
Total Assets	359.2	1,745.7
Accounts payable	24.6	88.2
Accrued compensation	21.6	35.3
Other accrued liabilities	56.7	81.6
Short-term debt and current portion long-term debt		4.3
Other noncurrent liabilities	14.4	131.1
Total Liabilities	$ 117.3	$ 340.5