Goodwill and Identifiable Intangible Assets, net - Summary of Goodwill Balances by Segment Reporting Structure (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Goodwill [Roll Forward]
Gross Carrying Value, at beginning of period	$ 2,407.2	$ 2,137.8
Accumulated impairment	(190.3)	(190.2)
Carrying Value, at beginning of period	2,216.9	1,947.6
Acquisition, purchase price and other adjustments	(5.3)	263.3
Currency translation	11.4	6.1
Gross Carrying Value, at end of period	2,413.3	2,407.2
Accumulated impairment	(190.7)	(190.3)
Carrying Value, at end of period	2,222.6	2,216.9
Operating Segments | Food
Goodwill [Roll Forward]
Gross Carrying Value, at beginning of period	577.2	568.9
Accumulated impairment	(49.3)	(49.2)
Carrying Value, at beginning of period	527.9	519.7
Acquisition, purchase price and other adjustments	0.0	6.3
Currency translation	2.5	2.0
Gross Carrying Value, at end of period	579.7	577.2
Accumulated impairment	(49.5)	(49.3)
Carrying Value, at end of period	530.2	527.9
Operating Segments | Protective
Goodwill [Roll Forward]
Gross Carrying Value, at beginning of period	1,830.0	1,568.9
Accumulated impairment	(141.0)	(141.0)
Carrying Value, at beginning of period	1,689.0	1,427.9
Acquisition, purchase price and other adjustments	(5.3)	257.0
Currency translation	8.9	4.1
Gross Carrying Value, at end of period	1,833.6	1,830.0
Accumulated impairment	(141.2)	(141.0)
Carrying Value, at end of period	$ 1,692.4	$ 1,689.0