Goodwill and Identifiable Intangible Assets, net - Summary of Goodwill Balances by Reportable Segment (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2019	Dec. 31, 2018
Goodwill [Roll Forward]
Gross Carrying Value	$ 2,137.8
Accumulated impairment		$ (190.2)
Carrying Value	1,947.6
Currency translation	2.4
Carrying Value	1,950.0
Food Care
Goodwill [Roll Forward]
Carrying Value	519.7
Currency translation	1.9
Carrying Value	521.6
Product Care
Goodwill [Roll Forward]
Carrying Value	1,427.9
Currency translation	0.5
Carrying Value	1,428.4
Operating Segments \| Food Care
Goodwill [Roll Forward]
Gross Carrying Value	568.9
Accumulated impairment		(49.2)
Operating Segments \| Product Care
Goodwill [Roll Forward]
Gross Carrying Value	$ 1,568.9
Accumulated impairment		$ (141.0)

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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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount before 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.

+ References

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Amount of accumulated impairment loss for 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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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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