Commitments and Contingencies - Schedule of Purchase Commitments (Details) - Inventory - USD ($) $ in Millions	Jul. 30, 2022	Jul. 31, 2021
Unrecorded Unconditional Purchase Obligation [Line Items]
Less than 1 year	$ 9,954	$ 6,903
1 to 3 years	2,240	1,806
3 to 5 years	770	1,545
Total	$ 12,964	$ 10,254

Unrecorded Unconditional Purchase Obligation, to be Paid, Year Four And Five

No definition available.

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- Definition

Unrecorded Unconditional Purchase Obligation, to be Paid, Year Two And Three

+ References

No definition available.

+ Details

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Namespace Prefix:	csco_
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Period Type:	instant

- Definition

Amount of fixed and determinable portion of unrecorded unconditional purchase obligation to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 440
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=123406679&loc=d3e25336-109308

+ Details

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Amount of the unrecorded obligation to transfer funds in the future for fixed or minimum amounts or quantities of goods or services at fixed or minimum prices (for example, as in take-or-pay contracts or throughput contracts).

+ References

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Details

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