Goodwill and Identifiable Intangible Assets, Net - Summary of Goodwill Balances by Segment Reporting Structure (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2016
Goodwill [Roll Forward]
Gross Carrying Value, at beginning of period	$ 2,130.6
Accumulated impairment	(190.8)
Carrying Value, at beginning of period	1,939.8
Acquisition and Divestiture, purchase price and other adjustments	17.6	$ 49.4
Currency translation	(9.8)	7.5
Gross Carrying Value, at end of period	2,137.8	2,073.3
Accumulated impairment	(190.2)	(190.4)
Carrying Value, at end of period	1,947.6	1,882.9
Operating Segments | Food Care
Goodwill [Roll Forward]
Gross Carrying Value, at beginning of period	576.5
Accumulated impairment	(49.6)
Carrying Value, at beginning of period	526.9
Acquisition and Divestiture, purchase price and other adjustments	(0.6)	10.1
Currency translation	(6.6)	6.0
Gross Carrying Value, at end of period	568.9	560.3
Accumulated impairment	(49.2)	(49.5)
Carrying Value, at end of period	519.7	510.8
Operating Segments | Product Care
Goodwill [Roll Forward]
Gross Carrying Value, at beginning of period	1,554.1
Accumulated impairment	(141.2)
Carrying Value, at beginning of period	1,412.9
Acquisition and Divestiture, purchase price and other adjustments	18.2	39.3
Currency translation	(3.2)	1.5
Gross Carrying Value, at end of period	1,568.9	1,513.0
Accumulated impairment	(141.0)	(140.9)
Carrying Value, at end of period	$ 1,427.9	$ 1,372.1