Segments - Reconciliation of Net Earnings to Total Company Adjusted EBITDA (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Segment Reporting Information [Line Items]
Segment Adjusted EBITDA	$ 289.3	$ 294.8	$ 851.4	$ 916.6
Interest expense, net	(70.1)	(40.9)	(196.6)	(119.3)
Depreciation and amortization, net of adjustments	(64.6)	(59.4)	(187.1)	(179.0)
Special items
Restructuring charges	(9.8)	(0.6)	(9.2)	(4.6)
Other restructuring associated costs(4)	(34.6)	(1.6)	(34.5)	(8.5)
Foreign currency exchange loss due to highly inflationary economies	(4.9)	(2.2)	(10.6)	(5.9)
Loss on debt redemption and refinancing activities	0.0	0.0	(4.9)	(11.2)
Impairment loss on equity investments	0.0	0.0	0.0	(31.6)
Contract terminations	15.3	0.0	15.3	0.0
Charges related to acquisition and divestiture activity	(2.8)	(0.3)	(24.5)	0.8
Other Special Items	2.7	(3.6)	(5.1)	(3.6)
Pre-tax impact of Special Items	(72.1)	(8.3)	(134.8)	(64.6)
Earnings before income tax provision	77.9	184.0	313.8	550.1
Liquibox
Special items
Liquibox intangible amortization	(7.4)	0.0	(19.9)	0.0
Liquibox inventory step-up expense	0.0	0.0	(10.8)	0.0
Corporate
Segment Reporting Information [Line Items]
Segment Adjusted EBITDA	(4.6)	(2.2)	(19.1)	(3.6)
Food
Special items
Restructuring charges	(5.7)	(0.6)	(6.3)	(3.1)
Food | Operating Segments
Segment Reporting Information [Line Items]
Segment Adjusted EBITDA	194.3	185.3	580.1	553.4
Protective
Special items
Restructuring charges	(4.1)	0.0	(2.9)	(1.5)
Protective | Operating Segments
Segment Reporting Information [Line Items]
Segment Adjusted EBITDA	$ 95.0	$ 109.5	$ 271.3	$ 363.2