Revenue - Schedule of Internal Risk Ratings for Contract Assets (Details) - USD ($) $ in Millions	Apr. 26, 2025	Jul. 27, 2024
Financing Receivable, Credit Quality Indicator [Line Items]
Contract asset, gross	$ 3,077	$ 2,794
1 to 4
Financing Receivable, Credit Quality Indicator [Line Items]
Contract asset, gross	1,245	1,266
5 to 6
Financing Receivable, Credit Quality Indicator [Line Items]
Contract asset, gross	1,762	1,456
7 and Higher
Financing Receivable, Credit Quality Indicator [Line Items]
Contract asset, gross	$ 70	$ 72

Amount, before allowance for credit loss, of right to consideration in exchange for good or service transferred to customer, when right is conditioned on something other than passage of time.

Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
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