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SIGNIFICANT ACCOUNTING POLICIES - Self Insurance Liabilities, Narrative (Details) - USD ($) $ in Millions	Jul. 31, 2021	Aug. 01, 2020
Loss Contingencies [Line Items]
Present value of claims, discount rate	2.00%
Insurance liabilities, discount	$ 10	$ 7
Due from insurance companies	17	12
Accrued expenses and other current liabilities
Loss Contingencies [Line Items]
Self-insurance liability, current	32	34
Other Long-Term Liabilities
Loss Contingencies [Line Items]
Self-insurance liability, long-term	$ 71	$ 67

X

- Definition

Due from Insurance Companies

+ References

No definition available.

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- Definition

Insurance Liability Discount

+ References

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+ 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.

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X

- Definition

The rate applied as of the balance sheet date to reduce the undiscounted amount of a guarantee fund and other insurance-related assessments to present value.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 405
-SubTopic 30
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6392405&loc=d3e24119-109301

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- Definition

Carrying amount of accrued known and estimated losses incurred as of the balance sheet date for which no insurance coverage exists, and for which a claim has been made or is probable of being asserted, typically arising from workmen's compensation-type of incidents and personal injury to nonemployees from accidents on the entity's property that are expected to be paid within one year (or the normal operating cycle, if longer).

+ References

No definition available.

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- Definition

Carrying amount of accrued known and estimated losses incurred as of the balance sheet date for which no insurance coverage exists, and for which a claim has been made or is probable of being asserted, typically arising from workmen's compensation-type of incidents and personal injury to nonemployees from accidents on the entity's property that are expected to be paid after one year (or the normal operating cycle, if longer).

+ References

No definition available.

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