Segments - Reconciliation of Net Earnings to Total Company Adjusted EBITDA- Depreciation and Restructuring Expense (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Depreciation and Amortization [Abstract]
Depreciation and amortization	$ 43.1	$ 32.7
Depreciation and amortization adjustments	0.0	(0.9)
Depreciation and amortization, net of adjustments	51.5	40.2
Share-based incentive compensation	8.5	8.4
Restructuring charges	0.6	7.4
Share-based compensation expense
Depreciation and Amortization [Abstract]
Depreciation and amortization	51.5	41.1
Depreciation and amortization
Depreciation and Amortization [Abstract]
Share-based incentive compensation	8.5	8.4
Food Care
Depreciation and Amortization [Abstract]
Restructuring charges	0.3	3.8
Food Care | Operating Segments
Depreciation and Amortization [Abstract]
Depreciation and amortization	29.0	26.2
Product Care
Depreciation and Amortization [Abstract]
Restructuring charges	0.3	3.6
Product Care | Operating Segments
Depreciation and Amortization [Abstract]
Depreciation and amortization	$ 22.5	$ 14.9