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Employee Benefit Plans - Additional Information - Summary of Share-Based Compensation Expense (Details) $ in Billions | 12 Months Ended
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Jul. 27, 2019 USD ($)
Retirement Benefits [Abstract] |
Total compensation cost related to unvested share-based awards | $ 3.3
Expected period of recognition of compensation cost, years | 2 years 9 months

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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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