Segments - Net Sales and Adjusted EBITDA of Reportable Segments (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Net sales	$ 1,260.3	$ 1,186.2	$ 1,155.2	$ 1,131.0	$ 1,227.8	$ 1,131.3	$ 1,070.3	$ 1,032.2	$ 4,732.7	$ 4,461.6	$ 4,211.3
Adjusted EBITDA from continuing operations									$ 889.5	$ 833.3	$ 809.2
Adjusted EBITDA Margin									18.80%	18.70%	19.20%
Food Care
Segment Reporting Information [Line Items]
Net sales									$ 2,908.1
Product Care
Segment Reporting Information [Line Items]
Net sales									1,824.6
Operating Segments | Food Care
Segment Reporting Information [Line Items]
Net sales									2,908.1	$ 2,815.2	$ 2,686.8
Adjusted EBITDA from continuing operations									$ 577.8	$ 538.1	$ 520.1
Adjusted EBITDA Margin									19.90%	19.10%	19.40%
Operating Segments | Product Care
Segment Reporting Information [Line Items]
Net sales									$ 1,824.6	$ 1,646.4	$ 1,524.5
Adjusted EBITDA from continuing operations									$ 318.6	$ 292.2	$ 284.8
Adjusted EBITDA Margin									17.50%	17.70%	18.70%
Corporate
Segment Reporting Information [Line Items]
Adjusted EBITDA from continuing operations									$ (6.9)	$ 3.0	$ 4.3
Product Concentration Risk | Net Sales | Operating Segments | Food Care
Segment Reporting Information [Line Items]
As a % of Total Company net sales									61.40%	63.10%	63.80%
Product Concentration Risk | Net Sales | Operating Segments | Product Care
Segment Reporting Information [Line Items]
As a % of Total Company net sales									38.60%	36.90%	36.20%