Aggregate Changes in the Balance of Gross Unrecognized Tax Benefits, which Excludes Interest and Penalties (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
Sep. 28, 2013	Sep. 29, 2012	Sep. 24, 2011
Income Taxes [Line Items]
Beginning Balance	$ 2,062	$ 1,375	$ 943
Increases related to tax positions taken during a prior year	745	340	49
Decreases related to tax positions taken during a prior year	(118)	(107)	(39)
Increases related to tax positions taken during the current year	626	467	425
Decreases related to settlements with taxing authorities	(592)	(3)	0
Decreases related to expiration of statute of limitations	(9)	(10)	(3)
Ending Balance	$ 2,714	$ 2,062	$ 1,375

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The gross amount of decreases in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

+ References

No definition available.

+ Details

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- Definition

The gross amount of increases in unrecognized tax benefits resulting from tax positions that have been or will be taken in the tax return for the current period.

+ References

No definition available.

+ Details

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- Definition

The gross amount of increases in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

+ References

No definition available.

+ Details

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- Definition

Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Unrecognized Tax Benefit

-URI http://asc.fasb.org/extlink&oid=6527854

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 15A

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319

+ Details

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- Definition

Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 15A

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319

+ Details

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- Definition

Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 15A

-Subparagraph (a)(4)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319

+ Details

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