NON-CONTROLLING INTERESTS - Effect of Changes in Ownership Interests of Less than Wholly Owned Subsidiaries (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 31, 2020	Aug. 02, 2019	Jul. 31, 2020	Aug. 02, 2019
Noncontrolling Interest [Abstract]
Net income attributable to Dell Technologies Inc.	$ 1,048	$ 3,416	$ 1,191	$ 3,709
Transfers (to)/from the non-controlling interests:
Increase in Dell Technologies Inc. additional paid-in-capital for equity issuances and other equity activity			491
Decrease in Dell Technologies Inc. additional paid-in-capital for equity issuances and other equity activity			(529)
Net transfers to non-controlling interests			(38)
Change from net income attributable to Dell Technologies Inc. and transfers to the non-controlling interests			$ 1,153