Segments - Reconciliation of Total Company Adjusted EBITDA to Net Earnings - Expenses (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Segment Reporting Information [Line Items]
Total Company depreciation and amortization	$ 41.1	$ 42.7	$ 122.3	$ 116.3
Share-based incentive compensation	8.3	12.3	22.9	31.4
Restructuring and other charges	6.6	6.2	22.3	9.2
Depreciation and amortization
Segment Reporting Information [Line Items]
Share-based incentive compensation	8.3	12.3	23.6	31.2
Food Care
Segment Reporting Information [Line Items]
Restructuring and other charges	2.3	3.9	8.4	5.8
Food Care | Operating Segments
Segment Reporting Information [Line Items]
Total Company depreciation and amortization	25.6	29.8	79.8	80.3
Product Care
Segment Reporting Information [Line Items]
Restructuring and other charges	4.3	2.3	13.9	3.4
Product Care | Operating Segments
Segment Reporting Information [Line Items]
Total Company depreciation and amortization	$ 15.5	$ 12.9	$ 42.5	$ 36.0