Accounting Policies [Abstract] Subsidiary or Equity Method Investee, Sale of Stock by Subsidiary or Equity Investee [Table] Subsidiary or Equity Method Investee, Sale of Stock by Subsidiary or Equity Investee [Table] Initial Application Period Cumulative Effect Transition [Axis] Initial Application Period Cumulative Effect Transition [Axis] Initial Application Period Cumulative Effect Transition [Domain] Initial Application Period Cumulative Effect Transition [Domain] Difference between Revenue Guidance in Effect before and after Topic 606 Difference between Revenue Guidance in Effect before and after Topic 606 [Member] Adjustments for New Accounting Pronouncements [Axis] Adjustments for New Accounting Pronouncements [Axis] Type of Adoption [Domain] Type of Adoption [Domain] Accounting Standards Update 2014-09 Accounting Standards Update 2014-09 [Member] Accounting Standards Update 2016-16 Accounting Standards Update 2016-16 [Member] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Computer Equipment Computer Equipment [Member] Building Building [Member] Leasehold Improvements Leasehold Improvements [Member] Machinery and Equipment Machinery and Equipment [Member] Software Development, Internal Use Software Development, Internal Use [Member] Internally developed software for long-term internal use. Software Development Software Development [Member] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Ownership [Axis] Ownership [Axis] Ownership [Domain] Ownership [Domain] SecureWorks SecureWorks Corp. [Member] SecureWorks Corp. [Member] Subsidiary, Sale of Stock [Line Items] Subsidiary, Sale of Stock [Line Items] Ownership percent in non-controlling interest Noncontrolling Interest, Ownership Percentage by Parent Estimated useful life Property, Plant and Equipment, Useful Life Capitalized software development costs Capitalized Software Development Costs for Software Sold to Customers Amortization expense Capitalized Computer Software, Amortization Standard product warranty term Standard Product Warranty Term Standard Product Warranty Term Standard product warranty term, average remaining period Standard Product Warranty, Average Remaining Aggregate Period Standard Product Warranty, Average Remaining Aggregate Period Advertising expense Advertising Expense Retained earnings (deficit) Retained Earnings (Accumulated Deficit) Net revenue Revenue, Net Operating income (loss) Operating Income (Loss) Other non-current liabilities Other Liabilities, Noncurrent Business Combinations [Abstract] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] VMware VMware, Inc. [Member] VMware, Inc. 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Consideration Transferred Non-controlling interests Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value Less: Post-merger stock compensation expense Business Combination, Separately Recognized Transactions, Expenses and Losses Recognized Total purchase price to allocate Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Less Noncontrolling Interest Shares of Class V Common Stock issuable in the EMC merger (in shares) Business Acquisition, Equity Interest Issued or Issuable, Number of Shares Cash consideration (in dollars per share) Business Acquisition, Share Price Current economic interest (as a percent) Business Acquisition, Equity Interest Issued Or Issuable, Targeted Or Tracking Stock, Percent of Target Business Acquisition, Equity Interest Issued Or Issuable, Targeted Or Tracking Stock, Percent of Target Share price (in dollars per share) Share Price Statement of Cash Flows [Abstract] 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Transaction Gain (Loss), Realized Net (gain)/loss on sale of businesses Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax Provision for doubtful accounts — including financing receivables Provision for Doubtful Accounts Other Other Noncash Income (Expense) Changes in assets and liabilities, net of effects from acquisitions and dispositions: Increase (Decrease) in Operating Capital [Abstract] Accounts receivable Increase (Decrease) in Accounts Receivable Financing receivables Increase (Decrease) in Finance Receivables Inventories Increase (Decrease) in Inventories Other assets Increase (Decrease) in Other Operating Assets Accounts payable Increase (Decrease) in Accounts Payable Deferred revenue Increase (Decrease) in Deferred Revenue Accrued and other liabilities Increase (Decrease) in Accrued Liabilities Change in cash from operating activities Net Cash Provided by (Used in) Operating Activities Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Investments: Payments for (Proceeds from) Investments [Abstract] Purchases Payments to Acquire Investments Maturities and sales Proceeds from Sale, Maturity and Collection of Investments Capital expenditures Payments to Acquire Property, Plant, and Equipment Proceeds from sale of facilities, land, and other assets Proceeds from Sale of Productive Assets Capitalized software development costs Payments For Capitalized Software Sold To Customers Payments for Capitalized Software Sold to Customers Collections on purchased financing receivables Proceeds from Collection of Finance Receivables Acquisition of businesses, net Payments to Acquire Businesses, Net of Cash Acquired Divestitures of businesses, net Proceeds from Divestiture of Businesses, Net of Cash Divested Asset acquisitions, net Payments to Acquire Other Property, Plant, and Equipment Asset dispositions, net Gain (Loss) on Disposition of Other Assets Other Payments for 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Long-term Debt Repayments of debt Repayments of Long-term Debt Other Proceeds from (Payments for) Other Financing Activities Change in cash from financing activities Net Cash Provided by (Used in) Financing Activities Effect of exchange rate changes on cash and cash equivalents Effect of Exchange Rate on Cash and Cash Equivalents Change in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents at beginning of period, including amounts held for sale Cash and Cash Equivalents, at Carrying Value, Including Discontinued Operations Cash and cash equivalents at end of the period Less: Cash included in current assets held for sale Disposal Group, Including Discontinued Operation, Cash and Cash Equivalents Cash and cash equivalents from continuing operations Cash and Cash Equivalents, at Carrying Value Income tax paid Income Taxes Paid Interest paid Interest Paid Segment Reporting [Abstract] Schedule of Segment Reporting Information, by 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expenses Business Combination, Integration Related Costs Other corporate expenses Other Expenses Discontinued Operations and Disposal Groups [Abstract] Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table] Disposal Group Classification [Axis] Disposal Group Classification [Axis] Disposal Group Classification [Domain] Disposal Group Classification [Domain] Discontinued Operations, Disposed of by Sale Discontinued Operations, Disposed of by Sale [Member] Disposal Group Name [Axis] Disposal Group Name [Axis] Disposal Group Name [Domain] Disposal Group Name [Domain] ECD Dell EMC Enterprise Content Division [Member] Dell EMC Enterprise Content Division [Member] Dell Services Dell Services [Member] Dell Services [Member] DSG Dell Software Group [Member] Dell Software Group [Member] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Net revenue Disposal Group, Including Discontinued Operation, Revenue Cost of net revenue Disposal Group, Including Discontinued Operation, Costs of Goods Sold Operating expenses Disposal Group, Including Discontinued Operation, Operating Expense Interest and other, net Disposal Group, Including Discontinued Operation, Interest and Other Income (Expense) Disposal Group, Including Discontinued Operation, Interest and Other Income (Expense) Income (loss) from discontinued operations before income taxes and gain (loss) on disposal Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, before Income Tax Income tax provision (benefit) Discontinued Operation, Tax Effect of Income (Loss) from Discontinued Operation During Phase-out Period Income from discontinued operations, net of income taxes, before gain (loss) on disposal Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax Gain (loss) on disposal, net of tax expense (benefit) of $182, $(256), and $506, respectively Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax Income (loss) from discontinued operations, net of income taxes Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Discontinued operations, tax expense (benefit) on gain (loss) Discontinued Operation, Tax Effect of Gain (Loss) from Disposal of Discontinued Operation Revenue from External Customers by Products and Services [Table] Revenue from External Customers by Products and Services [Table] Geographical [Axis] Geographical [Axis] Geographical [Domain] Geographical [Domain] United States UNITED STATES Foreign countries Foreign Subsidiaries [Member] Foreign Subsidiaries Products and Services [Axis] Products and Services [Axis] Products and Services [Domain] Products and 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of Tax, Attributable to Parent Income from discontinued operations, net of income taxes (Note 4) Net loss attributable to Dell Technologies Inc. Net Income (Loss) Attributable to Parent Income Tax Disclosure [Abstract] Domestic Income (Loss) from Continuing Operations before Income Taxes, Domestic Foreign Income (Loss) from Continuing Operations before Income Taxes, Foreign Loss from continuing operations before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Receivables [Abstract] Schedule of Components of the Company's Financing Receivables Segregated by Portfolio Segment Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Schedule of Changes in the Allowance for Financing Receivable Losses Allowance for Credit Losses on Financing Receivables [Table Text Block] Aging Customer Financing Receivables, Gross, Including Accrued Interest Past Due Financing Receivables [Table Text Block] Credit Quality Indicators Financing Receivable Credit Quality Indicators [Table Text Block] Funding of Financing Receivables Schedule of Debt [Table Text Block] Schedule of Financing Receivables Held by the Consolidated VIEs Schedule of Variable Interest Entities [Table Text Block] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative [Table] Derivative [Table] Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Contract [Domain] Derivative Contract [Domain] Foreign Exchange Forward Foreign Exchange Forward and Option [Member] Foreign Exchange Forward and Option [Member] Foreign Exchange Forward, Monetary Assets and Liabilities Foreign Exchange Forward [Member] Interest Rate Swap Interest Rate Swap [Member] Cross Currency Interest Rate Contract Cross Currency Interest Rate Contract [Member] Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Designated as cash flow hedging instruments Designated as Hedging Instrument [Member] Non-designated as hedging instruments Not Designated as Hedging Instrument [Member] Asset Class [Axis] Asset Class [Axis] Asset Class [Domain] Asset Class [Domain] Financing Receivables Financing Receivables [Member] Financing Receivables [Member] Liability Class [Axis] Liability Class [Axis] Fair Value by Liability Class [Domain] Fair Value by Liability Class [Domain] DFS Debt Structured Financing Debt [Member] Structured Financing Debt [Member] Derivative [Line Items] Derivative [Line Items] Term of derivative contract Derivative, Term of Contract Retirement Benefits [Abstract] Retirement Plan Benefits Pension and Other Postretirement Benefits Disclosure [Text Block] Fair Value Disclosures [Abstract] FAIR VALUE MEASUREMENTS Fair Value Disclosures [Text Block] DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES Derivative Instruments and Hedging Activities Disclosure [Text Block] Noncontrolling Interest [Abstract] Consolidated net loss attributable to Dell Technologies Inc. Transfers (to) from the non-controlling interests: Noncontrolling Interest Items [Abstract] Increase in Dell Technologies Inc. additional paid-in-capital for equity issuances and other equity activity Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Issuance of Equity by Subsidiary to Noncontrolling Interests Decrease in Dell Technologies Inc. additional paid-in-capital for equity issuances and other equity activity Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Other Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Other Net transfers to non-controlling interests Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Net Change from net loss attributable to Dell Technologies Inc. and transfers to/from the non-controlling interests Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Change Due to Net Income Attributable to Parent and Effects of Changes, Net Investments [Abstract] Schedule of Available-for-sale Securities and Cost Method Investments [Table] [Table] Schedule of Available-for-sale Securities and Cost Method Investments [Table] Schedule of Available-for-sale Securities and Cost Method Investments Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Short-term Investments Short-term Investments [Member] Long-term Investments Long-term Investments [Member] Long-term Investments [Member] Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Domain] Major Types of Debt and Equity Securities [Domain] U.S. government and agencies US Government Agencies Debt Securities [Member] U.S. corporate debt securities Domestic Corporate Debt Securities [Member] Foreign debt securities Foreign Corporate Debt Securities [Member] Municipal obligations Municipal Bonds [Member] Asset-backed securities Asset-backed Securities [Member] Schedule of Available-for-sale Securities and Cost Method Investments [Table] [Line Items] Schedule of Available-for-sale Securities and Cost Method Investments [Line Items] [Line Items] for Schedule of Available-for-sale Securities and Cost Method Investments [Table] Cost Available-for-sale Securities, Amortized Cost Basis [Abstract] Debt securities, cost Available-for-sale Debt Securities, Amortized Cost Basis Equity and other securities, cost Available-for-Sale Securities, Equity Securities and Cost Method Investments, At Cost Available-for-Sale Securities, Equity Securities and Cost Method Investments, At Cost Cost Investments, At Cost Investments, At Cost Unrealized Gain Available-for-sale Securities, Gross Unrealized Gain [Abstract] Debt securities, unrealized gain Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax Equity and other securities, unrealized gain Available-for-Sale Securities, Equity Securities and Cost Method Investments, Accumulated Gross Unrealized Gain, before Tax Available-for-Sale Securities, Equity Securities and Cost Method Investments, Accumulated Gross Unrealized Gain, before Tax Available for sale securities, unrealized gain Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax Unrealized (Loss) Available-for-sale Securities, Gross Unrealized Loss [Abstract] Debt securities, unrealized (loss) Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax Equity and other securities, unrealized (loss) Available-for-Sale Securities, Equity Securities and Cost Method Investments, Accumulated Gross Unrealized Loss, before Tax Available-for-Sale Securities, Equity Securities and Cost Method Investments, Accumulated Gross Unrealized Loss, before Tax Available for sale securities, unrealized (loss) Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax Carrying Value Available-for-sale Securities, Balance Sheet, Reported Amounts [Abstract] Total securities Available-for-sale Securities, Debt Securities Equity and other securities, carrying value Available-for-Sale Securities, Equity Securities and Cost Method Investments Available-for-Sale Securities, Equity Securities and Cost Method Investments Carrying Value Investments Aggregate fair value of investments in continuous unrealized loss position for greater than 12 months Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value Unrealized loss of investments Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] DHI Group Owners DHI Group Owners [Member] DHI Group Owners [Member] Class V Common Stock Owners Class V Common Stock Owners [Member] Class V Common Stock Owners [Member] Investment [Axis] Investment [Axis] Investment [Domain] Investment [Domain] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Number of groups of common stock Common Stock, Number of Groups Common Stock, Number of Groups Number of classes of common stock Common Stock, Number of Classes Common Stock, Number of Classes Economic ownership percentage, retained interest Common Stock, Economic Ownership Percentage Common Stock, Economic Ownership Percentage Economic ownership percentage Common Stock, Ownership Percentage Common Stock, Ownership Percentage Shares outstanding (in shares) Common Stock, Shares, Outstanding Product Warranties Disclosures [Abstract] WARRANTY LIABILITY Product Warranty Disclosure [Text Block] Related Party Transactions [Abstract] RELATED PARTY TRANSACTIONS Related Party Transactions Disclosure [Text Block] Condensed Financial Information of Parent Company Only Disclosure [Abstract] Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Land and Building [Member] Land and Building [Member] Other Machinery and Equipment [Member] Other Machinery and Equipment [Member] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Accounts receivable, net: Accounts Receivable, Net [Abstract] Gross accounts receivable Accounts Receivable, Gross, Current Allowance for doubtful accounts Allowance for Doubtful Accounts Receivable, Current Allowance for customer returns Allowance For Sales Returns, Current Allowance For Sales Returns, Current Total accounts receivable, net Accounts Receivable, Net, Current Inventories, net: Inventory, Net [Abstract] Production materials Inventory, Raw Materials and Supplies, Net of Reserves Work-in-process Inventory, Work in Process, Net of Reserves Finished goods Inventory, Finished Goods, Net of Reserves Total inventories, net Inventory, Net Prepaid expenses Prepaid Expense, Current [Abstract] Total prepaid expenses Prepaid Expense, Current Property, plant, and equipment, net: Property, Plant and Equipment [Abstract] Total property, plant, and equipment Property, Plant and Equipment, Gross Accumulated depreciation and amortization (b) Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Total property, plant, and equipment, net Accrued and other current liabilities: Accrued Liabilities, Current [Abstract] Compensation Employee-related Liabilities, Current Warranty liability Standard Product Warranty Accrual, Current Income and other taxes Taxes Payable, Current Other Sundry Liabilities, Current Other Sundry Liabilities, Current Total accrued and other current liabilities Accrued Liabilities, Current Other non-current liabilities: Liabilities, Other than Long-term Debt, Noncurrent [Abstract] Warranty liability Standard Product Warranty Accrual, Noncurrent Deferred and other tax liabilities Deferred Income Tax Liabilities, Net Other Other Sundry Liabilities, Noncurrent Total other non-current liabilities Depreciation expense Depreciation Retired property plant and equipment Property, Plant and Equipment, Disposals Schedule of Defined Benefit Plans Disclosures [Table] Schedule of Defined Benefit Plans Disclosures [Table] Retirement Plan Type [Axis] Retirement Plan Type [Axis] Retirement Plan Type [Domain] Retirement Plan Type [Domain] Pension Plan Pension Plan [Member] Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Interest cost Defined Benefit Plan, Interest Cost Expected return on plan assets Defined Benefit Plan, Expected Return (Loss) on Plan Assets Recognized actuarial loss Defined Benefit Plan, Amortization of Gain (Loss) Net periodic benefit cost Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Income Tax Contingency [Table] Income Tax Contingency [Table] Income Tax Contingency [Line Items] Income Tax Contingency [Line Items] Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Unrecognized tax benefits, beginning balance Unrecognized Tax Benefits Unrecognized tax benefits assumed through EMC merger transaction Unrecognized Tax Benefits, Increase Resulting from Acquisition Increases related to tax positions of the current year Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Increases related to tax position of prior years Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions Reductions for tax positions of prior years Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Lapse of statute of limitations Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Audit settlements Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities Unrecognized tax benefits, ending balance Schedule of Financing Receivables Past Due [Table] Schedule of Financing Receivables Past Due [Table] Financing Receivables, Period Past Due [Axis] Financing Receivables, Period Past Due [Axis] Financing Receivables, Period Past Due [Domain] Financing Receivables, Period Past Due [Domain] Past Due 1 — 90 Days Financing Receivables, 1 To 89 Days Past Due [Member] Financing Receivables, 1 To 89 Days Past Due [Member] Past Due 90 Days Financing Receivables, Equal to Greater than 90 Days Past Due [Member] Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Domain] Financing Receivable Portfolio Segment [Domain] Revolving Revolving Loan Portfolio Segment [Member] Revolving Loan Portfolio Segment [Member] Fixed-term Finance Leases Portfolio Segment [Member] Class of Financing Receivable, Type of Borrower [Axis] Class of Financing Receivable, Type of Borrower [Axis] Class of Financing Receivable, Type of Borrower [Domain] Class of Financing Receivable, Type of Borrower [Domain] Dell Preferred Account (DPA) Consumer Borrower [Member] Dell Business Credit (DBC) Small And Medium Commercial Borrower [Member] Small And Medium Commercial Borrower [Member] Consumer and Commercial Consumer And Small Commercial Borrower [Member] Consumer And Small Commercial Borrower [Member] Receivable Type [Axis] Receivable Type [Axis] Receivable [Domain] Receivable [Domain] Customer receivables Loans and Finance Receivables [Member] Financing Receivable, Recorded Investment, Past Due [Line Items] Financing Receivable, Recorded Investment, Past Due [Line Items] Current Financing Receivable, Recorded Investment, Current Past due Financing Receivable, Recorded Investment, Past Due Total customer receivables, gross Financing Receivable, Gross Condensed Financial Statements [Table] Condensed Financial Statements [Table] Valuation Allowances and Reserves Type [Axis] Valuation Allowances and Reserves Type [Axis] Valuation Allowances and Reserves [Domain] Valuation Allowances and Reserves [Domain] Trade Receivables - Allowance for doubtful accounts Allowance for Doubtful Accounts [Member] Trade Receivables - Allowance for customer returns Allowance for Sales Returns [Member] Customer Financing Receivables - Allowance for financing receivable losses Allowance for Losses on Finance Receivables [Member] Tax Valuation Allowance Valuation Allowance of Deferred Tax Assets [Member] Condensed Financial Statements, Captions [Line Items] Condensed Financial Statements, Captions [Line Items] Movement in Valuation Allowances and Reserves [Roll Forward] Movement in Valuation Allowances and Reserves [Roll Forward] Balance at beginning of period Valuation Allowances and Reserves, Balance Charged to income statement Valuation Allowances and Reserves, Reserves of Businesses Acquired Write-offs, returns, and charge-offs, net of recoveries Valuation Allowances and Reserves, Additions for Charges to Cost and Expense Balance at end of period Valuation Allowances and Reserves, Deductions Equity [Abstract] Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Foreign Currency Translation Adjustments Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Foreign Currency Translation Adjustments Including Portion Attributable to Noncontrolling Interest [Member] Accumulated Foreign Currency Adjustment Including Portion Attributable to Noncontrolling Interest [Member] Foreign Currency Translation Adjustments Attributable to Noncontrolling Interest Accumulated Foreign Currency Adjustment Attributable to Noncontrolling Interest [Member] Investments Accumulated Net Investment Gain (Loss) Attributable to Parent [Member] Investments Including Portion Attributable to Noncontrolling Interest Accumulated Net Investment Gain (Loss) Including Portion Attributable to Noncontrolling Interest [Member] Investments Attributable to Noncontrolling Interests Accumulated Net Investment Gain (Loss) Attributable to Noncontrolling Interest [Member] Cash Flow Hedges Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] Cash Flow Hedges Including Portion Attributable to Noncontrolling Interests Accumulated Net Gain (Loss) from Cash Flow Hedges Including Portion Attributable to Noncontrolling Interest [Member] Cash Flow Hedges Attributable to Noncontrolling Interests Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Noncontrolling Interest [Member] Pension and Other Postretirement Plans Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Pension and Other Postretirement Plans Including Portion Attributable to Noncontrolling Interest Accumulated Defined Benefit Plans Adjustment Including Portion Attributable to Noncontrolling Interest [Member] Pension and Other Postretirement Plans Attributable to Noncontrolling Interests Accumulated Defined Benefit Plans Adjustment Attributable to Noncontrolling Interest [Member] Accumulated Other Comprehensive Loss AOCI Attributable to Parent [Member] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] AOCI [Roll Forward] AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] Balance, beginning of period Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Other comprehensive income (loss) before reclassifications Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Amounts reclassified from accumulated other comprehensive loss Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Total other comprehensive income (loss), net of tax expense (benefit) of $12, $(3), and $(8), respectively Other Comprehensive Income (Loss), Net of Tax Less: Change in comprehensive income (loss) attributable to non-controlling interests Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest Balance, end of period Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Consolidated Entities [Axis] Consolidated Entities [Axis] Entity [Domain] Consolidated Entities [Domain] Parent Company Parent Company [Member] Class of Stock [Line Items] Class of Stock [Line Items] Assets: Assets [Abstract] Cash and cash equivalents Cash Other current assets Other Assets, Current Investments in subsidiaries Investments in Subsidiaries Investments in Subsidiaries Other non-current assets Other Assets, Noncurrent Total assets Assets Long-term debt Long-term Debt Accrued and other Other Liabilities Redeemable shares Temporary Equity, Carrying Amount, Attributable to Parent Stockholders' equity: Common stock and capital in excess of $.01 par value Common Stocks, Including Additional Paid in Capital Accumulated other comprehensive income (loss) Accumulated Other Comprehensive Income (Loss), Net of Tax Total Dell Technologies Inc. stockholders’ equity Stockholders' Equity Attributable to Parent Total liabilities, redeemable shares, and stockholders' equity Liabilities and Equity Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Debt, stated amount Debt Instrument, Face Amount Condensed Income Statement [Abstract] Condensed Income Statement [Abstract] Condensed Income Statement [Abstract] Equity in net loss from continuing operations of subsidiaries attributable to Dell Technologies Inc. Income (Loss) From Subsidiaries, Continuing Operations Income (Loss) From Subsidiaries, Continuing Operations Equity in net income (loss) from discontinued operations of subsidiaries Income (Loss) From Subsidiaries, Discontinued Operations Income (Loss) From Subsidiaries, Discontinued Operations Equity in net loss of subsidiaries attributable to Dell Technologies Inc. Income (Loss) from Subsidiaries, Net of Tax Parent - Interest and other, net Nonoperating Income (Expense) Parent - Income tax expense (benefit) Income Tax Expense (Benefit) Other comprehensive income (loss) of subsidiaries attributable to Dell Technologies Inc. Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Comprehensive loss attributable to Dell Technologies Inc. Comprehensive Income (Loss), Net of Tax, Attributable to Parent Condensed Statement of Cash Flows [Abstract] Condensed Statement of Cash Flows [Abstract] Condensed Statement of Cash Flows [Abstract] Change in cash from operating activities Cash flow from investing activities: Transfer to/from subsidiary Payments For (Proceeds From) Subsidiary Payments For (Proceeds From) Subsidiary Change in cash from investing activities Cash flow from financing activities: Proceeds from the issuance of DHI Group Common Stock Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options Repurchases of Common Stock Other Change in cash from financing activities Change in cash and cash equivalents Cash and cash equivalents at beginning of the period Cash and cash equivalents at end of the period Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] 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Foreign Income tax holiday, aggregate dollar amount Income Tax Holiday, Aggregate Dollar Amount Income tax holiday, income tax benefits per share (per share) Income Tax Holiday, Income Tax Benefits Per Share Income tax holiday, bridge period Income Tax Holiday, Bridge Period Income Tax Holiday, Bridge Period Unrecognized tax benefits including penalties and interest Unrecognized Tax Benefits, and Income Tax Penalties and Interest Accrued Unrecognized Tax Benefits, and Income Tax Penalties and Interest Accrued Unrecognized tax benefits if recognized would impact on income tax expense Unrecognized Tax Benefits that Would Impact Effective Tax Rate Income tax penalties and interest accrued Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued Income tax benefits from interest deductions Unrecognized Tax Benefits, Interest Deductions Unrecognized Tax Benefits, Interest Deductions Income tax penalties and interest expense Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense Net benefit to provision for income taxes Effective Income Tax Rate Reconciliation, Tax Settlement, Domestic, Amount VeloCloud Networks, Inc. VeloCloud Networks, Inc. [Member] VeloCloud Networks, Inc. [Member] Wavefront and Apteligent, Inc. Wavefront and Apteligent, Inc [Member] Wavefront and Apteligent, Inc. [Member] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Developed Technology Technology-Based Intangible Assets [Member] Customer Contracts Customer Contracts [Member] Total consideration transferred Cash acquired Cash Acquired from Acquisition Intangible assets acquired Finite-lived Intangible Assets Acquired Goodwill recognized Goodwill, Acquired During Period Estimated useful lives of intangible assets acquired Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Unvested equity acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Unvested Equity Attributable to Post Combination Services Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Unvested Equity Attributable to Post Combination Services Step acquisition, gain 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