Segments - Net Sales and Adjusted EBITDA by Reportable Segment (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Segment Reporting Information [Line Items]
Total Company Net Sales	$ 1,218.5	$ 1,186.2	$ 3,492.2	$ 3,472.4
Non-U.S. GAAP Adjusted EBITDA from continuing operations	$ 241.1	$ 218.9	$ 693.6	$ 641.2
Adjusted EBITDA Margin (as a percent)	19.80%	18.50%	19.90%	18.50%
Corporate
Segment Reporting Information [Line Items]
Non-U.S. GAAP Adjusted EBITDA from continuing operations	$ (2.5)	$ (2.9)	$ (7.5)	$ (7.6)
Food Care
Segment Reporting Information [Line Items]
Total Company Net Sales	$ 729.6	$ 727.2	$ 2,120.6	$ 2,136.5
Adjusted EBITDA Margin (as a percent)	21.90%	20.00%	21.60%	19.40%
Food Care | Product Concentration Risk | Net Sales
Segment Reporting Information [Line Items]
As a % of Total Company net sales	59.90%	61.30%	60.70%	61.50%
Food Care | Operating Segments
Segment Reporting Information [Line Items]
Total Company Net Sales	$ 729.6	$ 727.2	$ 2,120.6	$ 2,136.5
Non-U.S. GAAP Adjusted EBITDA from continuing operations	159.6	145.4	458.1	415.5
Product Care
Segment Reporting Information [Line Items]
Total Company Net Sales	$ 488.9	$ 459.0	$ 1,371.6	$ 1,335.9
Adjusted EBITDA Margin (as a percent)	17.20%	16.60%	17.70%	17.50%
Product Care | Product Concentration Risk | Net Sales
Segment Reporting Information [Line Items]
As a % of Total Company net sales	40.10%	38.70%	39.30%	38.50%
Product Care | Operating Segments
Segment Reporting Information [Line Items]
Total Company Net Sales	$ 488.9	$ 459.0	$ 1,371.6	$ 1,335.9
Non-U.S. GAAP Adjusted EBITDA from continuing operations	$ 84.0	$ 76.4	$ 243.0	$ 233.3