v2.4.0.8

Employee Benefit Plans - Additional Information (Detail) (USD $) | 3 Months Ended | 12 Months Ended |  |  | 3 Months Ended |  | 3 Months Ended | 12 Months Ended | 3 Months Ended |
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Oct. 26, 2013 stock_incentive_plan | Oct. 27, 2012 | Jul. 27, 2013 | Oct. 25, 2013 | Jul. 28, 2012 | Oct. 26, 2013 2005 Plan [Member] | Nov. 19, 2013 2005 Plan [Member] | Oct. 26, 2013 2005 Plan [Member] Stock awards subsequent to November 12, 2009 [Member] | Oct. 26, 2013 2005 Plan [Member] Employee Stock Option [Member] Minimum [Member] | Oct. 26, 2013 2005 Plan [Member] Employee Stock Option [Member] Maximum [Member] | Oct. 26, 2013 2005 Plan [Member] Restricted Stock Units (RSUs) [Member] Minimum [Member] | Oct. 26, 2013 2005 Plan [Member] Restricted Stock Units (RSUs) [Member] Maximum [Member] | Oct. 26, 2013 2005 Plan [Member] Performance Shares [Member] | Jul. 27, 2013 2005 Plan [Member] Performance Shares [Member] Minimum [Member] | Jul. 27, 2013 2005 Plan [Member] Performance Shares [Member] Maximum [Member] | Oct. 26, 2013 2005 Plan [Member] Stock awards prior to November 12, 2009 [Member] | Oct. 26, 2013 1996 Plan [Member] M | Oct. 26, 2013 1996 Plan [Member] Minimum [Member] | Oct. 26, 2013 1996 Plan [Member] Maximum [Member] | Oct. 26, 2013 Employee Stock [Member] | Oct. 27, 2012 Employee Stock [Member] | Oct. 26, 2013 Supplemental Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number Of Stock Incentive Plans | 5 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares reserved for issuance (in shares) |  |  |  |  |  | 559,000,000 | 694,000,000 |  |  |  |  |  |  |  |  |  |  |  |  | 471,400,000 |  | 9,000,000
Reduction in number of shares available for issuance after amendment approved by shareholders (ratio) |  |  |  |  |  | 1.5 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock options and stock appreciation rights exercise price percentage of the fair market value of the underlying stock on the grant date (percentage) |  |  |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  | 100.00% |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period |  |  |  |  |  |  |  | 10 years |  |  |  |  |  |  |  | 9 years | 9 years |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage |  |  |  |  |  |  |  |  | 25.00% | 20.00% | 25.00% | 20.00% |  | 0.00% | 150.00% |  |  | 25.00% | 20.00% |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period |  |  |  |  |  |  |  |  | 36 months | 48 months |  |  | 3 years |  |  |  |  | 36 months | 48 months |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,500,000,000 |  |  |  |  |
Number of months in which stock options ratably exercise, nonstandard |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 60 |  |  |  |  |
ESPP- offering period description |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 24-month offering period, which consists of four consecutive 6-month purchase periods. |  |
Share-based Compensation Arrangement by Share-based Payment Award, Discount from Market Price, Offering Date (in percentage) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 15.00% |  |
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Jan. 03, 2020 |  |
Shares issued under employee purchase plan (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 |
Shares available for issuance under Employee Stock Purchase Plan (in shares) | 217,000,000 |  | 228,000,000 |  | 218,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 51,000,000 |  |
Unrecognized compensation cost related to unvested share-based awards | $ 2,400,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expected period of recognition of compensation cost, years | 2 years 6 months |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income tax benefit for employee share-based compensation expense | $ 78,000,000 | $ 79,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Closing stock price |  |  |  | $ 22.46 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
In-the-money exercisable stock option (in shares) | 61,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock options exercisable (in shares) | 244,000,000 |  | 271,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock options exercisable, weighted-average exercise price per share | $ 25.08 |  | $ 24.84 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Performance restricted stock units, based on operating performance goals |  |  | 50.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Performance restricted stock units, based on TSR |  |  | 50.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition Number of stock incentive plans. + References No definition available. + Details
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- Definition Reduction in number of shares available for issuance after amendment approved by shareholders. + References No definition available. + Details
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- Definition Aggregate number of common shares reserved for future issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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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. + 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) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period. + 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 (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Description of the plan, including the basis for determining contributions, the employee groups covered, and the nature and effect of significant matters affecting comparability of information for all periods presented. For leveraged ESOPs and pension reversion ESOPs, the description generally includes the basis for releasing shares and how dividends on allocated and unallocated shares are used. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6418621&loc=d3e17540-113929 + Details
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- Definition Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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 (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Percentage of vesting of 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 (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Discount rate from fair value on offering date that participants pay for shares. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Date the equity-based award expires, in CCYY-MM-DD format. + 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 (a)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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 (a)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested). + 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 (a)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + 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 (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. + 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 (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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