Restructuring and Transaction Activities, Restructuring Accrual Activity (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
Mar. 28, 2020	Sep. 28, 2019
Restructuring Accrual [Roll Forward]
Beginning balance	$ 7
Charges	36
Non-cash items	(2)	$ (8)
Cash payments	(30)
Ending balance	11	7
Employee Severance and Benefits [Member]
Restructuring Accrual [Roll Forward]
Beginning balance	2
Charges	17
Non-cash items	0
Cash payments	(12)
Ending balance	7	2
Facility Exit Costs [Member]
Restructuring Accrual [Roll Forward]
Beginning balance	5
Charges	0
Non-cash items	0
Cash payments	(1)
Ending balance	4	5
Non-Cash Impairment Charges [Member]
Restructuring Accrual [Roll Forward]
Beginning balance	0
Charges	2
Non-cash items	(2)
Cash payments	0
Ending balance	0	0
Transaction Activities [Member]
Restructuring Accrual [Roll Forward]
Beginning balance	0
Charges	17
Non-cash items	0
Cash payments	(17)
Ending balance	$ 0	$ 0

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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- Definition

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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-Publisher FASB
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- Definition

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.

+ References

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- Definition

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

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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