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Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Millions | 12 Months Ended
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Jul. 27, 2024 | Jul. 29, 2023 | Jul. 30, 2022
Statement of Comprehensive Income [Abstract] |  |  |
Change in net unrealized gains and losses, tax benefit (expense) | $ (47) | $ 35 | $ 174
Net (gains) losses reclassified into earnings, tax expense (benefit) | (14) | (4) | 5
Change in unrealized gains and losses, tax benefit (expense) | (30) | (7) | (20)
Net (gains) losses reclassified into earnings, tax (benefit) expense | 12 | 15 | 7
Net change in cumulative translation adjustment and actuarial gains and losses, tax benefit (expense) | $ 2 | $ 19 | $ (44)

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- Definition Amount, before adjustment, of tax expense (benefit) for unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) and unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 12 -SubTopic 10 -Topic 220 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-12 + Details
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- Definition Amount of tax expense (benefit) for reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-12 + Details
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