Closing Stock Price

No definition available.

Name:	csco_ClosingStockPrice
Namespace Prefix:	csco_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

In The Money Exercisable Stock Option Shares

+ References

No definition available.

+ Details

Name:	csco_InMoneyExercisableStockOptionShares
Namespace Prefix:	csco_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of stock incentive plans.

+ References

No definition available.

+ Details

Name:	csco_NumberOfStockIncentivePlans
Namespace Prefix:	csco_
Data Type:	xbrli:positiveIntegerItemType
Balance Type:	na
Period Type:	instant

- Definition

PRSU allocation between Financial operating goals and TSR (in percentage)

+ References

No definition available.

+ Details

Name:	csco_PRSUallocationbetweenFinancialoperatinggoalsandTSR
Namespace Prefix:	csco_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Reduction in number of shares available for issuance after amendment approved by shareholders.

+ References

No definition available.

+ Details

Name:	csco_ReductionInNumberOfSharesAvailableForIssuanceAfterAmendmentApprovedByShareholders
Namespace Prefix:	csco_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Share Based Compensation Arrangement By Share Based Payment Award Exercisable Percentage, one year from date of grant, Maximum

+ References

No definition available.

+ Details

Name:	csco_ShareBasedCompensationArrangementByShareBasedPaymentAwardExercisablePercentageMaximum
Namespace Prefix:	csco_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Share based compensation arrangement by share based payment award exercisable percentage, one year from date of grant, minimum.

+ References

No definition available.

+ Details

Name:	csco_ShareBasedCompensationArrangementByShareBasedPaymentAwardExercisablePercentageMinimum
Namespace Prefix:	csco_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Shares available for issuance

+ References

No definition available.

+ Details

Name:	csco_Sharesavailableforissuance
Namespace Prefix:	csco_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Stock options and stock appreciation rights exercise price percentage of the fair market value of the underlying stock on the grant date

+ References

No definition available.

+ Details

Name:	csco_StockOptionsAndStockAppreciationRightsExercisePricePercentageOfFairMarketValueOfUnderlyingStockOnGrantDate
Namespace Prefix:	csco_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Stock options ratable vesting schedule, nonstandard (in months)

+ References

No definition available.

+ Details

Name:	csco_Stockoptionsratablevestingschedulenonstandardinmonths
Namespace Prefix:	csco_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- 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)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

Name:	us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- 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

+ Details

Name:	us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- 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

Name:	us-gaap_EmployeeStockOwnershipPlanESOPPlanDescription
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- 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

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Description of award terms as to how many shares or portion of an award are no longer contingent on satisfaction of either a service condition, market condition or a performance condition, thereby giving the employee the legal right to convert the award to shares, to sell the shares, and be entitled to the cash proceeds of such sale. For example, vesting may be expressed as being 25 percent of the shares under option on each anniversary of the grant date.

+ 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

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRights
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- 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

Name:	us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- 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

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPriceOfferingDate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- 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

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardExpirationDate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- 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

Name:	us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- 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

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- 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

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- 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

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Describes the measurement, allocation or disclosure that departs from GAAP but is necessary to explain or measure amounts available for dividends on stock referenced to the unit. This element applies when the targeted stock stipulates explicitly that the performance of the unit will be measured on the basis that departs from GAAP.

+ References

No definition available.

+ Details

Name:	us-gaap_TargetedOrTrackingStockUseOfNonGenerallyAcceptedAccountingPrinciplesMeasuresOfPerformance
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Employee Benefit Plans (Additional Information) (Details) (USD $) In Billions, except Share data, unless otherwise specified	3 Months Ended
	Oct. 25, 2014 stock_incentive_plan	Oct. 24, 2014	Jul. 26, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of stock incentive plans	4
Total compensation cost related to unvested share-based awards	$ 2.3
Expected period of recognition of compensation cost, years	2 years 4 months 24 days
Closing stock price		$ 23.78
In-the-money exercisable stock option shares	61,000,000
Number Exercisable, shares	159,000,000		183,000,000
Weighted- Average Exercise Price per Share	$ 27.13		$ 26.50
2005 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for issuance (in shares)	694,000,000
Exercise price as a percentage of market value (in percentage)	100.00%
Description of PRSU granted contingent on performance metrics	generally 50% of the PRSUs are earned based on the average of annual operating cash flow and earnings per share goals established at the beginning of each fiscal year over a three-year performance period. Generally, the remaining 50% of the PRSUs are earned based on the Company’s TSR measured against the benchmark TSR of a peer group over the same period.
PRSU allocation between Financial operating goals and TSR	50.00%
2005 Plan \| Stock awards prior to November 12, 2009 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration date for stock options and stock appreciation rights (in years)	9 years
2005 Plan \| Stock awards subsequent to November 12, 2009 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Reduction in shares available for issuance pursuant to November 12, 2009 amendment (ratio)	1.5
Expiration date for stock options and stock appreciation rights (in years)	10 years
2005 Plan \| Employee Stock Option \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Award Vesting Rights, Percentage	20.00%
Share-based Compensation Award Requisite Service Period (in months)	48 months
2005 Plan \| Employee Stock Option \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Award Vesting Rights, Percentage	25.00%
Share-based Compensation Award Requisite Service Period (in months)	36 months
2005 Plan \| Restricted Stock Units (RSUs) \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Award Vesting Rights, Percentage	20.00%
2005 Plan \| Restricted Stock Units (RSUs) \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Award Vesting Rights, Percentage	25.00%
2005 Plan \| PRSU based on financial performance metrics
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Award Requisite Service Period (in months)	3 years
2005 Plan \| PRSU based on financial performance metrics \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Award Vesting Rights, Percentage	0.00%
2005 Plan \| PRSU based on financial performance metrics \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Award Vesting Rights, Percentage	150.00%
2005 Plan \| PRSU based on TSR [Member] \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Award Vesting Rights, Percentage	0.00%
2005 Plan \| PRSU based on TSR [Member] \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Award Vesting Rights, Percentage	150.00%
2005 Plan \| PRSU based on nonfinancial operating goals \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Award Vesting Rights, Percentage	0.00%
2005 Plan \| PRSU based on nonfinancial operating goals \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Award Vesting Rights, Percentage	100.00%
1996 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for issuance (in shares)	2,500,000,000
Exercise price as a percentage of market value (in percentage)	100.00%
Expiration date for stock options and stock appreciation rights (in years)	9 years
Percentage in which stock options and RSUs become exercisable for within one year from date of grant, minimum	20.00%
Percentage in which stock options and RSUs become exercisable for within one year from date of grant, maximum	25.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights	Certain other grants utilized a 60-month ratable vesting schedule. In addition, the Board of Directors, or other committees administering the 1996 Plan, had the discretion to use a different vesting schedule and did so from time to time.
Stock options ratable vesting schedule, nonstandard (in months)	60
Termination of Stock Plan	Dec. 31, 2006
1996 Plan \| Employee Stock Option \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Award Requisite Service Period (in months)	36 months
1996 Plan \| Employee Stock Option \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Award Requisite Service Period (in months)	48 months
EMPLOYEE STOCK PURCHASE RIGHTS
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for issuance (in shares)	471,400,000
ESPP-Offering Period Plan Description	24-month offering period, which consists of four consecutive 6-month purchase periods
ESPP-Discount rate	15.00%
Termination of Stock Plan	Jan. 03, 2020
ESPP-shares available for issuance, shares	25,000,000