Reconciliation of Weighted Average Number of Common and Common Equivalent Shares Outstanding and Awards Excluded from Diluted Earnings Per Share Calculation (Detail) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
Jun. 30, 2012	Jul. 02, 2011	Jun. 30, 2012	Jul. 02, 2011
Shares (in millions):
Weighted average number of common shares outstanding (basic)	1,791	1,883	1,794	1,891
Weighted average dilutive impact of equity-based compensation awards	21	29	24	33
Weighted average number of common and common equivalent shares outstanding (diluted)	1,812	1,912	1,818	1,924
Awards excluded from diluted earnings per share	10	10	13	7

Reconciliation of Weighted Average Number of Common and Common Equivalent Shares Outstanding and Awards Excluded from Diluted Earnings Per Share Calculation (Detail)
In Millions, unless otherwise specified

3 Months Ended

9 Months Ended

Jun. 30, 2012

Jul. 02, 2011

Jun. 30, 2012

Jul. 02, 2011

Shares (in millions):

Weighted average number of common shares outstanding (basic)

1,791

1,883

1,794

1,891

Weighted average dilutive impact of equity-based compensation awards

Weighted average number of common and common equivalent shares outstanding (diluted)

1,812

1,912

1,818

1,924

Awards excluded from diluted earnings per share

- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

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-Publisher FASB

-Name Emerging Issues Task Force (EITF)

-Number 07-4

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

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-Name Accounting Standards Codification

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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+ Details

- Definition

The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

+ References+ Details

- Definition

Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 128

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Reference 5: http://www.xbrl.org/2003/role/presentationRef

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-Name Emerging Issues Task Force (EITF)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Weighted-Average Number of Common Shares Outstanding

-URI http://asc.fasb.org/extlink&oid=6528421

+ Details