Notional Principal Amounts of Outstanding Derivative Instruments and Credit Risk Amounts of Associated with Outstanding or Unsettled Derivative Instruments (Detail) (USD $) In Millions	Sep. 24, 2011	Sep. 25, 2010
Instruments qualifying as accounting hedges:
Notional Principal - Foreign exchange contracts	$ 13,705	$ 13,957
Credit Risk Amounts - Foreign exchange contracts	537	62
Instruments other than accounting hedges:
Notional Principal - Foreign exchange contracts	9,891	10,727
Credit Risk Amounts - Foreign exchange contracts	$ 56	$ 45

Aggregate notional amount of all foreign currency derivatives not designated as hedging instruments. Notional amount refers to the number of currency units specified in the foreign currency derivative contract.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1B

-URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5580258-113959

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Notional Amount

-URI http://asc.fasb.org/extlink&oid=6519104

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1A

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5579245-113959

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant