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Derivative Instruments - Schedule of Notional Amounts of Derivatives Outstanding (Details) - USD ($) $ in Millions | Jan. 29, 2022 | Jul. 31, 2021
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Derivative [Line Items] |  |
Derivatives | $ 6,982 | $ 6,869
Foreign currency derivatives |  |
Derivative [Line Items] |  |
Derivatives | 4,254 | 4,139
Interest rate derivatives |  |
Derivative [Line Items] |  |
Derivatives | 2,000 | 2,000
Total return swaps—deferred compensation |  |
Derivative [Line Items] |  |
Derivatives | $ 728 | $ 730

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- Definition Nominal or face amount used to calculate payment on derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959 + Details
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