Divestitures and Held for Sale - Schedule of Major Classes of Assets and Liabilities Held for Sale (Detail) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Discontinued Operations and Disposal Groups [Abstract]
Accounts receivable, net	$ 331.6	$ 411.7
Inventories	218.1	338.7
Prepaid expenses and other	19.7	42.8
Property, plant and equipment, net	304.1	515.9
Operating lease assets, net	41.6	0.0
Goodwill	880.9	942.4
Other intangible assets, net	741.0	1,270.8
Other assets	8.7	12.9
Current assets held for sale	2,545.7	3,535.2
Accounts payable	180.1	256.7
Accrued compensation	38.2	57.0
Other accrued liabilities	145.0	154.3
Deferred income taxes	137.1	251.7
Operating lease liabilities	29.3	0.0
Other liabilities	8.3	15.1
Current liabilities held for sale	$ 538.0	$ 734.8