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Schedule II - Valuation and Qualifying Accounts (Tables) | 12 Months Ended
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Nov. 04, 2018
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] |
SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] | Schedule II — Valuation and Qualifying Accounts
|  | Balance at Beginning of Period |  | Additions to Allowances |  | Charges Utilized/ Write-offs |  | Balance at End of Period
|  | (In millions)
Accounts receivable allowances: |  |  |  |  |  |  |  |
Distributor credit allowances (1) |  |  |  |  |  |  |  |
Fiscal year ended November 4, 2018 |  | $ | 177 |  |  | $ | 882 |  |  | $ | (908 | ) |  | $ | 151 |
Fiscal year ended October 29, 2017 |  | $ | 252 |  |  | $ | 1,176 |  |  | $ | (1,251 | ) |  | $ | 177 |
Fiscal year ended October 30, 2016 |  | $ | 66 |  |  | $ | 1,216 |  |  | $ | (1,030 | ) |  | $ | 252 |
Other accounts receivable allowances (2) |  |  |  |  |  |  |  |  |  |  |  |
Fiscal year ended November 4, 2018 |  | $ | 31 |  |  | $ | 116 |  |  | $ | (135 | ) |  | $ | 12 |
Fiscal year ended October 29, 2017 |  | $ | 40 |  |  | $ | 49 |  |  | $ | (58 | ) |  | $ | 31 |
Fiscal year ended October 30, 2016 |  | $ | 9 |  |  | $ | 142 |  |  | $ | (111 | ) |  | $ | 40 |
Income tax valuation allowances (3) |  |  |  |  |  |  |  |  |  |  |  |
Fiscal year ended November 4, 2018 |  | $ | 1,447 |  |  | $ | 314 |  |  | $ | (414 | ) |  | $ | 1,347 |
Fiscal year ended October 29, 2017 |  | $ | 1,003 |  |  | $ | 460 |  |  | $ | (16 | ) |  | $ | 1,447 |
Fiscal year ended October 30, 2016 |  | $ | 147 |  |  | $ | 882 |  |  | $ | (26 | ) |  | $ | 1,003 |
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(1) | Distributor credit allowances relate to price adjustments and other allowances.
(2) | Other accounts receivable allowances primarily include sales returns and allowance for doubtful accounts.
(3) | The decrease in the fiscal year 2018 valuation allowance resulted from restructuring activities offset by increases due to the Brocade Merger and in foreign deferred tax assets arising from foreign credits and losses not expected to be realized. The increase in the fiscal year 2017 valuation allowances resulted from foreign deferred tax assets arising from foreign losses not expected to be realized.

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- Definition The entire disclosure for valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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- References No definition available. + Details
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