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Income Taxes - Additional Information (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Jul. 27, 2024 | Jul. 29, 2023 | Jul. 30, 2022
Operating Loss Carryforwards [Line Items] |  |  |
Undistributed earnings of certain foreign subsidiaries on which tax is not provided | $ 6,500 |  |
Unrecognized deferred income tax liability | 681 |  |
Gross reduction in unrecognized tax benefits | 53 | $ 1,063 | $ 69
Unrecognized tax benefits that would affect the effective tax rate if realized | 1,500 |  |
Net interest expense recognized on unrecognized tax benefits | 21 | 27 | 33
Accrual for interest and penalties | 401 | 523 | $ 486
Unrecognized tax benefit that could be reduced in next 12 months | 100 |  |
Tax credit carryforward, valuation allowance | 878 |  |
Settled Litigation | Internal Revenue Service (IRS) |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Net benefit | 55 | 145 |
Decrease in interest expense | 18 | 53 |
Gross reduction in unrecognized tax benefits | 245 | $ 1,100 |
Domestic Tax Jurisdiction |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Operating loss carryforwards | 1,400 |  |
Tax credit carryforward | 309 |  |
State and Local Jurisdiction |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Operating loss carryforwards | 1,900 |  |
Operating loss carryforwards, valuation allowance | 10 |  |
Tax credit carryforward | 1,900 |  |
Foreign Tax Jurisdiction |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Operating loss carryforwards | 531 |  |
Operating loss carryforwards, valuation allowance | 86 |  |
Tax credit carryforward | $ 11 |  |

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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to domestic income tax settlement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (b)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12 + Details
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