SEGMENT INFORMATION - Net revenue and property, plant and equipment (Details) - USD ($) $ in Millions	3 Months Ended
	May 01, 2020	May 03, 2019
Disaggregation of Revenue [Line Items]
Total net revenue	$ 21,897	$ 21,908
Operating segments
Disaggregation of Revenue [Line Items]
Total net revenue	21,428	21,569
Operating segments | Infrastructure Solutions Group
Disaggregation of Revenue [Line Items]
Total net revenue	7,569	8,202
Operating segments | Infrastructure Solutions Group | Servers and networking
Disaggregation of Revenue [Line Items]
Total net revenue	3,758	4,180
Operating segments | Infrastructure Solutions Group | Storage
Disaggregation of Revenue [Line Items]
Total net revenue	3,811	4,022
Operating segments | Client Solutions Group
Disaggregation of Revenue [Line Items]
Total net revenue	11,104	10,910
Operating segments | Client Solutions Group | Commercial
Disaggregation of Revenue [Line Items]
Total net revenue	8,634	8,307
Operating segments | Client Solutions Group | Consumer
Disaggregation of Revenue [Line Items]
Total net revenue	2,470	2,603
Operating segments | VMware
Disaggregation of Revenue [Line Items]
Total net revenue	$ 2,755	$ 2,457