Segments - Reconciliation of Net Earnings to Total Company Adjusted EBITDA- Depreciation and Restructuring Expense (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Depreciation and Amortization [Abstract]
Depreciation and amortization			$ 85.9	$ 66.0
Depreciation and amortization adjustments	$ 0.0	$ (0.1)	0.0	(1.0)
Depreciation and amortization, net of adjustments	53.4	38.0	104.9	78.2
Share-based incentive compensation	10.5	4.8	19.0	13.2
Restructuring charges	10.1	29.3	10.7	36.7
Share-based compensation expense
Depreciation and Amortization [Abstract]
Depreciation and amortization	53.4	38.1	104.9	79.2
Depreciation and amortization
Depreciation and Amortization [Abstract]
Share-based incentive compensation	10.5	4.8	19.0	13.2
Food
Depreciation and Amortization [Abstract]
Restructuring charges	4.9	18.6	5.2	22.4
Food | Operating Segments
Depreciation and Amortization [Abstract]
Depreciation and amortization	30.2	25.0	59.2	51.2
Protective
Depreciation and Amortization [Abstract]
Restructuring charges	5.2	10.7	5.5	14.3
Protective | Operating Segments
Depreciation and Amortization [Abstract]
Depreciation and amortization	$ 23.2	$ 13.1	$ 45.7	$ 28.0