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Segment Information and Major Customers - Long-lived Assets by Geographic Areas (Details) - USD ($) $ in Millions	Jul. 31, 2021	Jul. 25, 2020	Jul. 27, 2019
Segment Reporting, Asset Reconciling Item [Line Items]
Long-lived assets	$ 3,433	$ 3,374	$ 2,789
United States
Segment Reporting, Asset Reconciling Item [Line Items]
Long-lived assets	2,189	2,328	2,266
International
Segment Reporting, Asset Reconciling Item [Line Items]
Long-lived assets	$ 1,244	$ 1,046	$ 523

X

- Definition

Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599

+ Details

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X

- 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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X

- Details

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