Goodwill and Identifiable Intangible Assets, net - Summary of Goodwill Balances by Reportable Segment (Details) - USD ($) $ in Millions	6 Months Ended
Jun. 30, 2020	Dec. 31, 2019
Goodwill [Roll Forward]
Gross Carrying Value	$ 2,407.2
Accumulated impairment		$ (190.3)
Carrying Value	2,216.9
Acquisition, purchase price and other adjustments	(7.1)
Currency translation	(13.4)
Carrying Value	2,196.4
Food
Goodwill [Roll Forward]
Carrying Value	527.9
Currency translation	(7.8)
Carrying Value	520.1
Protective
Goodwill [Roll Forward]
Carrying Value	1,689.0
Currency translation	(5.6)
Carrying Value	1,676.3
Operating Segments \| Food
Goodwill [Roll Forward]
Gross Carrying Value	577.2
Accumulated impairment		(49.3)
Acquisition, purchase price and other adjustments	0.0
Operating Segments \| Protective
Goodwill [Roll Forward]
Gross Carrying Value	1,830.0
Accumulated impairment		$ (141.0)
Acquisition, purchase price and other adjustments	$ (7.1)

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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