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, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Depreciation and Amortization [Abstract]
Depreciation and amortization	$ 58.2	$ 53.4	$ 115.1	$ 104.9
Share-based incentive compensation	12.3	10.5	23.8	19.0
Total Company restructuring charges	2.1	10.1	2.1	10.7
Food
Depreciation and Amortization [Abstract]
Total Company restructuring charges	1.3	4.9	1.1	5.2
Food \| Operating Segments
Depreciation and Amortization [Abstract]
Depreciation and amortization	32.7	30.2	64.4	59.2
Protective
Depreciation and Amortization [Abstract]
Total Company restructuring charges	0.8	5.2	1.0	5.5
Protective \| Operating Segments
Depreciation and Amortization [Abstract]
Depreciation and amortization	$ 25.5	$ 23.2	$ 50.7	$ 45.7