Acquisition - Narrative (Details) - GLT Acquisition - Berry Global Group, Inc. - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Mar. 30, 2024	Mar. 29, 2025	Mar. 30, 2024
Asset Acquisition [Line Items]
Business acquisition, pro forma net sales	$ 885	$ 1,638	$ 1,725
Business acquisition, pro forma loss	$ 25	$ 110	$ 60

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 805
-SubTopic 50
-Name Accounting Standards Codification
-Section 15
-Paragraph 3
-Publisher FASB
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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (h)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479328/805-10-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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