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SIGNIFICANT ACCOUNTING POLICIES - Cost of Sales (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 31, 2021	Aug. 01, 2020	Aug. 03, 2019
Shipping and Handling
Disaggregation of Revenue [Line Items]
Shipping, handling and transportation costs	$ 1,513	$ 1,505	$ 1,299

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

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

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- Definition

Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.

+ References

No definition available.

+ Details

Name:	us-gaap_OperatingExpenses
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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- Details

Name:	srt_ProductOrServiceAxis=us-gaap_ShippingAndHandlingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: