Borrowings - Schedule of Short-Term Debt (Details) - USD ($) $ in Millions	Apr. 30, 2022	Jul. 31, 2021
Debt Disclosure [Abstract]
Current portion of long-term debt	$ 1,000	$ 2,508
Effective Rate	2.13%	1.75%

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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 6
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123466204&loc=SL6036836-161870

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
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-URI http://asc.fasb.org/extlink&oid=124435984&loc=d3e28551-108399

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 50
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-URI http://asc.fasb.org/extlink&oid=124429444&loc=SL124452920-239629

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-Publisher FASB
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-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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