Segments - Reconciliation of U.S. GAAP Net Earnings to Non-U.S. GAAP Total Company Adjusted EBITDA Expenses (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Total Company depreciation and amortization	$ 216.5	$ 185.3	$ 161.4
Depreciation and amortization adjustments	0.0	(0.8)	(2.4)
Depreciation and amortization, net of adjustments	216.5	184.5	159.0
Share-based incentive compensation	42.3	34.4	29.9
Restructuring and other charges	11.0	41.9	47.8
Food
Segment Reporting Information [Line Items]
Restructuring and other charges	3.2	23.5	17.7
Food | Operating Segments
Segment Reporting Information [Line Items]
Total Company depreciation and amortization	122.2	110.3	105.4
Protective
Segment Reporting Information [Line Items]
Restructuring and other charges	7.8	18.4	30.1
Protective | Operating Segments
Segment Reporting Information [Line Items]
Total Company depreciation and amortization	$ 94.3	$ 75.0	$ 56.0