SEGMENT INFORMATION - Reconciliation of net revenue by reportable segments to consolidated net revenue (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Oct. 30, 2020	Nov. 01, 2019	Oct. 30, 2020	Nov. 01, 2019	Jan. 31, 2020	Feb. 01, 2019
Segment Reporting Information [Line Items]
Total net revenue	$ 23,482	$ 22,844	$ 68,112	$ 68,122
Consolidated operating income (loss)	1,129	836	2,967	1,905
Amortization of intangibles	(800)	(1,100)	(2,500)	(3,300)
Other businesses | Virtustream
Segment Reporting Information [Line Items]
Impairments				619	$ 619	$ 190
Operating segments
Segment Reporting Information [Line Items]
Total net revenue	23,203	22,471	66,949	67,060
Consolidated operating income (loss)	2,721	2,444	7,400	7,458
Operating segments | Infrastructure Solutions Group
Segment Reporting Information [Line Items]
Total net revenue	8,024	8,390	23,800	25,213
Consolidated operating income (loss)	882	996	2,587	2,889
Operating segments | Client Solutions Group
Segment Reporting Information [Line Items]
Total net revenue	12,286	11,410	34,593	34,068
Consolidated operating income (loss)	1,002	739	2,309	2,514
Operating segments | VMware
Segment Reporting Information [Line Items]
Total net revenue	2,893	2,671	8,556	7,779
Consolidated operating income (loss)	837	709	2,504	2,055
Operating segments | Other businesses
Segment Reporting Information [Line Items]
Total net revenue	314	456	1,288	1,311
Consolidated operating income (loss)	3	0	105	(48)
Unallocated transactions
Segment Reporting Information [Line Items]
Total net revenue	4	1	4	1
Consolidated operating income (loss)	1	(2)	(1)	(29)
Other corporate expenses	(214)	(55)	(395)	(792)
Reconciling items
Segment Reporting Information [Line Items]
Total net revenue	(39)	(84)	(129)	(250)
Impact of purchase accounting	(49)	(96)	(165)	(299)
Amortization of intangibles	(845)	(1,057)	(2,547)	(3,334)
Transaction-related expenses	(52)	(76)	(211)	(165)
Stock-based compensation expense	$ (436)	$ (322)	$ (1,219)	$ (886)