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Segment Reporting - Segment Financial Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 02, 2023	Apr. 03, 2022
Segment Reporting Information [Line Items]
Net sales	$ 1,729,783	$ 1,770,982
Operating profit	229,648	169,061
Restructuring/Asset impairment charges	(28,814)	(12,142)
Amortization of Intangible Assets	(21,164)	(18,800)
Other non-GAAP income/(charges), net	66,205	(60,790)
Consumer Packaging
Segment Reporting Information [Line Items]
Net sales	909,278	868,098
Industrial Paper Packaging
Segment Reporting Information [Line Items]
Net sales	615,855	699,129
All Other
Segment Reporting Information [Line Items]
Net sales	204,650	203,755
Operating Segments | Consumer Packaging
Segment Reporting Information [Line Items]
Net sales	909,278	868,098
Operating profit	91,821	173,609
Operating Segments | Industrial Paper Packaging
Segment Reporting Information [Line Items]
Net sales	615,855	699,129
Operating profit	94,367	72,660
Operating Segments | All Other
Segment Reporting Information [Line Items]
Net sales	204,650	203,755
Operating profit	27,233	14,524
Intersegment Sales
Segment Reporting Information [Line Items]
Net sales	44,047	37,750
Intersegment Sales | Consumer Packaging
Segment Reporting Information [Line Items]
Net sales	2,055	1,411
Intersegment Sales | Industrial Paper Packaging
Segment Reporting Information [Line Items]
Net sales	38,720	33,638
Intersegment Sales | All Other
Segment Reporting Information [Line Items]
Net sales	3,272	2,701
Corporate
Segment Reporting Information [Line Items]
Operating profit

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