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Income Taxes - Valuation Allowance (Details) - Valuation Allowance of Deferred Tax Assets - USD ($) $ in Millions | 12 Months Ended
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Oct. 26, 2025 | Oct. 27, 2024 | Oct. 29, 2023
Changes in allowance for doubtful accounts |  |  |
Beginning balance | $ 569 | $ 530 | $ 460
Increases | 480 | 39 | 70
Ending balance | $ 1,049 | $ 569 | $ 530

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- Definition Amount of valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480738/235-10-S50-5 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09(Column B)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-4 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09(Column E)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-4 + Details
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