EARNINGS (LOSS) PER SHARE - Schedule of Earnings (Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions			3 Months Ended		9 Months Ended
	Oct. 28, 2016	Sep. 07, 2016	Oct. 28, 2016	Oct. 30, 2015	Oct. 28, 2016	Oct. 30, 2015
Numerator: Continuing operations
Net income from continuing operations - basic			$ (1,626)	$ (264)	$ (2,311)	$ (1,000)
Net loss from continuing operations attributable to DHI Group - basic			$ (438)	$ 84	$ 875	$ 51
Class V Common Stock
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Current economic interest (as a percent)	64.00%
Earnings (loss) per share attributable to Dell Technologies Inc. - basic:
Continuing operations (in dollars per share)			$ 0.79	$ 0.00	$ 0.79	$ 0.00
Earnings (loss) per share attributable to Dell Technologies Inc. - diluted:
Continuing operations (in dollars per share)			$ 0.78	$ 0.00	$ 0.78	$ 0.00
Numerator: Continuing operations
Net income from continuing operations - basic			$ 175	$ 0	$ 175	$ 0
Incremental dilution from VMware			(2)	0	(2)	0
Net income from continuing operations - diluted			$ 173	$ 0	$ 173	$ 0
Denominator: Class V Common Stock weighted-average shares outstanding
Weighted-average shares outstanding - basic (in shares)			222	0	222	0
Dilutive effect of options, restricted stock units, restricted stock, and other (in shares)			0	0	0	0
Weighted-average shares outstanding - diluted (in shares)			222	0	222	0
Weighted-average shares outstanding - antidilutive (in shares)			0	0	0	0
DHI Group
Earnings (loss) per share attributable to Dell Technologies Inc. - basic:
Continuing operations (in dollars per share)			$ (3.62)	$ (0.65)	$ (5.70)	$ (2.47)
Discontinued operations (in dollars per share)			(0.88)	0.21	2.01	0.13
Earnings (loss) per share attributable to Dell Technologies Inc. - diluted:
Continuing operations (in dollars per share)			(3.63)	(0.65)	(5.70)	(2.47)
Discontinued operations (in dollars per share)			$ (0.88)	$ 0.21	$ 2.01	$ 0.13
Numerator: Continuing operations
Net income from continuing operations - basic			$ (1,801)	$ (264)	$ (2,486)	$ (1,000)
Incremental dilution from VMware			(1)	0	(1)	0
Net income from continuing operations - diluted			$ (1,802)	$ (264)	$ (2,487)	$ (1,000)
Denominator: Class V Common Stock weighted-average shares outstanding
Weighted-average shares outstanding - basic (in shares)			497	405	436	405
Dilutive effect of options, restricted stock units, restricted stock, and other (in shares)			0	0	0	0
Weighted-average shares outstanding - diluted (in shares)			497	405	436	405
Weighted-average shares outstanding - antidilutive (in shares)			33	55	30	54
Common Stock | EMC | Class V Common Stock
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Current economic interest (as a percent)		65.00%
VMware | EMC
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Common stock (in shares)		343