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Restructuring and Other Charges - Schedule of Activities Related to Restructuring and Other Charges (Details) - USD ($) $ in Millions | 12 Months Ended
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Jul. 29, 2023 | Jul. 30, 2022 | Jul. 31, 2021
Restructuring Reserve [Roll Forward] |  |  |
Liability, beginning of period | $ 9 | $ 34 | $ 72
Charges | 531 | 6 | 886
Cash payments | (314) | (25) | (890)
Non-cash items | (13) | (6) | (34)
Liability, end of period | 213 | 9 | 34
FISCAL 2023 PLAN | Employee Severance |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Liability, beginning of period | 0 | 0 | 0
Charges | 465 | 0 | 0
Cash payments | (301) | 0 | 0
Non-cash items | 2 | 0 | 0
Liability, end of period | 166 | 0 | 0
FISCAL 2023 PLAN | Other |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Liability, beginning of period | 0 | 0 | 0
Charges | 70 | 0 | 0
Cash payments | (11) | 0 | 0
Non-cash items | (15) | 0 | 0
Liability, end of period | 44 | 0 | 0
FISCAL 2021 AND PRIOR PLANS | Employee Severance |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Liability, beginning of period | 2 | 16 | 58
Charges | 0 | 9 | 836
Cash payments | (1) | (23) | (879)
Non-cash items | 0 | 0 | 1
Liability, end of period | 1 | 2 | 16
FISCAL 2021 AND PRIOR PLANS | Other |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Liability, beginning of period | 7 | 18 | 14
Charges | (4) | (3) | 50
Cash payments | (1) | (2) | (11)
Non-cash items | 0 | (6) | (35)
Liability, end of period | $ 2 | $ 7 | $ 18

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- Definition Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482017/420-10-50-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 17 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-17 + Details
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- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)(1)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479823/420-10-S99-2 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482047/420-10-45-3 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.P.3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479823/420-10-S99-1 + Details
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- Definition Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482017/420-10-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479823/420-10-S99-2 + Details
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- Definition Amount of expense (reversal of expense) which increases (decreases) the restructuring reserve from an adjustment to a previously accrued restructuring liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482017/420-10-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479823/420-10-S99-2 + Details
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