Restructuring And Impairment Charges (Schedule Of Restructuring Accrual Costs) (Details) - USD ($) $ in Millions	12 Months Ended
Sep. 26, 2015	Sep. 27, 2014	Sep. 28, 2013
Restructuring Reserve [Roll Forward]
Beginning balance	$ 13	$ 4
Charges	13	30	$ 14
Non-cash asset impairment	(2)	(7)
Cash payments	(14)	(14)
Ending balance	10	13	4
Severance and termination benefits
Restructuring Reserve [Roll Forward]
Beginning balance	5	2
Charges	4	9
Cash payments	(7)	(6)
Ending balance	2	5	2
Facility exit costs
Restructuring Reserve [Roll Forward]
Beginning balance	8	2
Charges	7	14
Cash payments	(7)	(8)
Ending balance	8	8	$ 2
Non-cash charges
Restructuring Reserve [Roll Forward]
Charges	2	7
Non-cash asset impairment	$ (2)	$ (7)

Restructuring Reserve, Non-Cash Asset Impairment

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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

+ Details

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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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB TOPIC 5.P.3)
-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140864-122747

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
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-Section S99
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 5
-Section P
-Subsection 3, 4

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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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 5.P.4(b))
-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747

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-Name Staff Accounting Bulletin (SAB)
-Number Topic 5
-Section P
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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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