EARNINGS PER SHARE - Schedule of Earnings (Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jul. 31, 2020	Aug. 02, 2019	Jul. 31, 2020	Aug. 02, 2019
Earnings Per Share [Abstract]
Earnings (loss) per share - basic (in dollars per share)	$ 1.41	$ 4.75	$ 1.61	$ 5.17
Earnings (loss) per share - diluted (in dollars per share)	$ 1.37	$ 4.47	$ 1.56	$ 4.84
Numerator: Continuing operations
Net income attributable to Dell Technologies — basic	$ 1,048	$ 3,416	$ 1,191	$ 3,709
Incremental dilution from VMware	(3)	(62)	(5)	(78)
Net income (loss) - diluted	$ 1,045	$ 3,354	$ 1,186	$ 3,631
Denominator: weighted-average shares outstanding
Weighted-average shares outstanding - basic (in shares)	741	719	740	718
Dilutive effect of options, restricted stock units, restricted stock, and other (in shares)	20	32	18	32
Weighted-average shares outstanding - diluted (in shares)	761	751	758	750
Weighted-average shares outstanding - antidilutive (in shares)	6	1	6	1