Derivative Instruments - Effect of Derivative Instruments Designated as Fair Value Hedges (Details) - Interest rate derivatives - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Apr. 29, 2023	Apr. 30, 2022	Apr. 29, 2023	Apr. 30, 2022
Derivative [Line Items]
Hedged items	$ (6)	$ 54	$ 26	$ 112
Derivatives designated as hedging instruments	6	(55)	(26)	(114)
Total	$ 0	$ (1)	$ 0	$ (2)

Amount of gain (loss) from the increase (decrease) in fair value of derivative and nonderivative instruments designated as fair value hedging instruments recognized in the income statement.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 25
-Section 50
-Paragraph 1
-Subparagraph (a)(1)
-URI https://asc.fasb.org/extlink&oid=121577467&loc=d3e76258-113986

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- Definition

Amount of the increase (decrease) in fair value of the hedged item in a fair value hedge recognized in the income statement.

+ References

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- Definition

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)(1)
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959

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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.

+ References

No definition available.

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