Dispositions and Other Income/(Expense) (Detail) - USD ($) $ in Millions	12 Months Ended
Sep. 30, 2017	Oct. 01, 2016	Oct. 03, 2015
Schedule of Other Income and Expense [Line Items]
Gain from acquisition of BAMTech	$ 255	$ 0	$ 0
Litigation Settlement	(177)	0	0
Other expense, net	$ 78	$ 0	$ 0

[Line Items] for Schedule of Other Income and Expense [Table]

No definition available.

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- Definition

Amount of judgment or settlement awarded to (against) the entity in respect of litigation.

+ References

No definition available.

+ Details

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- Definition

The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.7)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

+ Details

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- Definition

Amount of income related to nonoperating activities, classified as other.

+ References

+ Details

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