Acquisitions and Dispositions - Preliminary Fair Values of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Sep. 27, 2020	Aug. 31, 2020	Aug. 03, 2020	Jan. 10, 2020	Dec. 31, 2019	[1]
Business Acquisition [Line Items]
Goodwill	$ 1,369,283				$ 1,429,346
Can Packaging
Business Acquisition [Line Items]
Trade accounts receivable			$ 5,256
Inventories			3,225
Property, plant and equipment			10,636
Goodwill			12,359
Other intangible assets		$ 25,750	25,746
Payable to suppliers			(2,811)
Other net tangible assets/(liabilities)			(3,530)
Deferred income taxes, net			(5,408)
Net Assets			$ 45,473
Jacksonville
Business Acquisition [Line Items]
Trade accounts receivable				$ 0
Inventories				150
Property, plant and equipment				2,773
Goodwill				1,050
Other intangible assets				0
Payable to suppliers				0
Other net tangible assets/(liabilities)				0
Deferred income taxes, net				0
Net Assets				$ 3,973

[1] The year-end condensed consolidated balance sheet data was derived from audited financial statements, but does not include all disclosures required by accounting principles generally accepted in the United States of America.