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SUBSEQUENT EVENTS (Details) - USD ($) $ in Millions					3 Months Ended			9 Months Ended
SUBSEQUENT EVENTS (Details) - USD ($) $ in Millions	Nov. 17, 2016	Nov. 08, 2016	Nov. 02, 2016	Oct. 31, 2016	Feb. 03, 2017	Oct. 28, 2016	Oct. 30, 2015	Oct. 28, 2016	Oct. 30, 2015	Nov. 09, 2016
Subsequent Event [Line Items]
Income tax benefit						$ 669	$ 17	$ 623	$ 88
Scenario, Forecast
Subsequent Event [Line Items]
Income tax benefit					$ 300
2.53% Revolving Credit Facility due September 2021 \| Secured Debt
Subsequent Event [Line Items]
Repayments								$ 500
Subsequent Event \| Domestic Tax Authority \| Internal Revenue Service (IRS)
Subsequent Event [Line Items]
Settlement payable to IRS										$ 545
Subsequent Event \| Dell Software Group \| Discontinued Operations, Disposed of by Sale
Subsequent Event [Line Items]
Cash consideration				$ 2,400
Pre-tax gain on sale				$ 1,200
Subsequent Event \| Dell Services \| Discontinued Operations, Disposed of by Sale
Subsequent Event [Line Items]
Cash consideration			$ 3,000
Pre-tax gain on sale			$ 1,500
Subsequent Event \| 4.875% Asset Sale Bridge Facility due September 2017 \| Bridge Facilities
Subsequent Event [Line Items]
Repayment of borrowings		$ 2,200
Subsequent Event \| 2.53% Term Loan A-1 Facility due December 2018 \| Secured Debt
Subsequent Event [Line Items]
Repayment of borrowings		$ 2,100
Subsequent Event \| 2.53% Revolving Credit Facility due September 2021 \| Secured Debt
Subsequent Event [Line Items]
Repayments	$ 1,000