Business Consolidation and Other Activities, Accrual Activity for Business Consolidation and Other Activities (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended	12 Months Ended
Mar. 29, 2025	Mar. 29, 2025	Sep. 28, 2024
Accrued Reserves [Roll Forward]
Beginning balance		$ 29
Charges		77
Non-cash items		(1)	$ (8)
Cash		(88)
Ending balance	$ 17	17	29
Employee Severance and Benefits [Member]
Accrued Reserves [Roll Forward]
Beginning balance		29
Charges		1
Non-cash items		0
Cash		(13)
Ending balance	17	17	29
Facility Exit Costs [Member]
Accrued Reserves [Roll Forward]
Beginning balance		0
Charges		11
Non-cash items		0
Cash		(11)
Ending balance	0	0	0
Non-Cash Impairment Charges [Member]
Accrued Reserves [Roll Forward]
Beginning balance		0
Charges		1
Non-cash items		(1)
Cash		0
Ending balance	0	0	0
Transaction Activities [Member]
Accrued Reserves [Roll Forward]
Beginning balance		0
Charges		64
Non-cash items		0
Cash		(64)
Ending balance	0	0	$ 0
Proposed Merger with Amcor [Member]
Accrued Reserves [Roll Forward]
Charges	$ 5	$ 23

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

+ References

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 420
-SubTopic 10
-Name Accounting Standards Codification
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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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No definition available.

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Amount of increase (decrease) in the restructuring reserve related to foreign currency translation (gain) loss and other increases (decreases).

+ References

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