Benefit Plans - Additional Information (Detail) (USD $)	3 Months Ended
Dec. 28, 2013	Dec. 29, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of vested RSUs as of vesting date	$ 1,100,000,000	$ 1,500,000,000
Total intrinsic value of options at the time of exercise	559,000,000	347,000,000
Shares reserved for future issuance under stock plans (in shares)	16,600,000
Weighted-average grant date fair value	$ 333.26	$ 0.00
Weighted-average fair value of stock purchase rights per share	$ 103.99	$ 136.84
Income tax benefit related to share-based compensation expense	265,000,000	214,000,000
Total unrecognized compensation cost on stock options and RSUs	$ 6,600,000,000
Total unrecognized compensation cost on stock options and RSUs, weighted-average recognition period (in years)	3 years 2 months 12 days
Business Combinations
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average grant date fair value		$ 407.80
Stock Options Assumed	0	29,000

Share Based Compensation Arrangement By Share Based Payment Award Options Assumed In Period.

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- Definition

The weighted average grant-date fair value of stock purchase rights granted during the reporting period as calculated by applying the disclosed option pricing methodology.

+ References

No definition available.

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- Definition

Unrecognized cost of unvested share-based compensation awards.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (i)

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible equity-based compensation costs.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

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- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

+ References

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

+ References

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