NON-CONTROLLING INTERESTS - Additional Information (Narrative) (Details) - USD ($) $ in Millions	Jul. 31, 2020	May 01, 2020	Jan. 31, 2020	Aug. 02, 2019	May 03, 2019	Feb. 01, 2019
Noncontrolling Interest [Line Items]
Non-controlling interests	$ 4,558	$ 3,240	$ 3,155	$ 3,095	$ (1,661)	$ (942)
Non-controlling interests
Noncontrolling Interest [Line Items]
Non-controlling interests	$ 4,977	$ 4,854	$ 4,729	$ 5,544	$ 4,803	$ 4,823
VMware, Inc.
Noncontrolling Interest [Line Items]
Outstanding equity interest held	80.40%		80.90%
VMware, Inc. | Non-controlling interests
Noncontrolling Interest [Line Items]
Non-controlling interests	$ 4,900		$ 4,600
SecureWorks
Noncontrolling Interest [Line Items]
Outstanding equity interest held	85.90%		86.80%
Outstanding equity interest, including RSAs	85.20%		86.20%
SecureWorks | Non-controlling interests
Noncontrolling Interest [Line Items]
Non-controlling interests	$ 94		$ 88