Borrowings - Schedule of Short-Term Debt (Details) - USD ($) $ in Millions	Jan. 29, 2022	Jul. 31, 2021
Short-term Debt [Line Items]
Current portion of long-term debt	$ 502	$ 2,508
Total short-term debt	2,502	2,508
Senior notes
Short-term Debt [Line Items]
Current portion of long-term debt	$ 502	$ 2,508
Effective Rate	1.14%	1.75%
Commercial paper
Short-term Debt [Line Items]
Commercial paper	$ 2,000	$ 0
Effective Rate	0.15%	0.00%

Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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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.

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