Divestitures and Held for Sale - Summary of Amounts Included in Discontinued Operations (Detail) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Discontinued Operations and Disposal Groups [Abstract]
Net sales	$ 4,402.2	$ 5,142.8	$ 4,055.2
Cost of products sold	2,812.5	3,316.5	2,627.3
Selling, general and administrative expenses	836.8	971.6	621.3
Restructuring costs, net	9.5	24.3	12.7
Impairment of goodwill, intangibles and other assets	1,467.5	0.7
Operating income (loss)	(724.1)	829.7	793.9
Non-operating expense (income)	(831.9)	(6.9)	(1.1)
Income before income taxes	107.8	836.6	795.0
Income tax expense	236.1	258.6	228.9
Net income (loss)	$ (128.3)	$ 578.0	$ 566.1

Disposal group including discontinued operation impairment of goodwill, intangibles and other assets.

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Disposal group, including discontinued operation, non operating income expense.

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Disposal group including discontinued operation restructuring costs.

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Amount before tax of income (loss) from operations classified as a discontinued operation. Excludes gain (loss) on disposal and provision for gain (loss) until its disposal.

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Amount of tax expense (benefit) attributable to income (loss) from operations classified as a discontinued operation. Excludes tax expense (benefit) for gain (loss) on disposal and for provision for gain (loss) until disposal.

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Amount of costs of goods sold attributable to disposal group, including, but not limited to, discontinued operation.

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Amount of general and administrative expense attributable to disposal group, including, but not limited to, discontinued operation.

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Amount of revenue attributable to disposal group, including, but not limited to, discontinued operation.

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Amount after tax of income (loss) from a discontinued operation attributable to the parent. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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