Segments - Net Sales and Adjusted EBITDA by Reportable Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Segment Reporting Information [Line Items]
Total Company Net Sales	$ 1,173.9	$ 1,112.7
Adjusted EBITDA from continuing operations	$ 253.2	$ 215.8
Adjusted EBITDA Margin	21.60%	19.40%
Corporate
Segment Reporting Information [Line Items]
Adjusted EBITDA from continuing operations	$ 4.1	$ (2.1)
Food Care
Segment Reporting Information [Line Items]
Total Company Net Sales	$ 690.3	$ 680.0
Adjusted EBITDA Margin	22.60%	21.00%
Food Care | Product Concentration Risk | Net Sales
Segment Reporting Information [Line Items]
As a % of Total Company net sales	58.80%	61.10%
Food Care | Operating Segments
Segment Reporting Information [Line Items]
Total Company Net Sales	$ 690.3	$ 680.0
Adjusted EBITDA from continuing operations	156.3	142.9
Product Care
Segment Reporting Information [Line Items]
Total Company Net Sales	$ 483.6	$ 432.7
Adjusted EBITDA Margin	19.20%	17.30%
Product Care | Product Concentration Risk | Net Sales
Segment Reporting Information [Line Items]
As a % of Total Company net sales	41.20%	38.90%
Product Care | Operating Segments
Segment Reporting Information [Line Items]
Total Company Net Sales	$ 483.6	$ 432.7
Adjusted EBITDA from continuing operations	$ 92.8	$ 75.0