BUSINESS COMBINATIONS, GOODWILL AND INTANGIBLE ASSETS - Intangible Assets (Details) - USD ($)	3 Months Ended
	May 01, 2020	May 03, 2019	Jan. 31, 2020
Business Acquisition [Line Items]
Gross	$ 39,025,000,000		$ 39,963,000,000
Accumulated Amortization	(25,953,000,000)		(25,611,000,000)
Total	13,072,000,000		14,352,000,000
Total intangible assets	42,780,000,000		43,718,000,000
Intangible assets, net	16,827,000,000		18,107,000,000
Amortization expense	855,000,000	$ 1,200,000,000
Impairment charges related to intangible assets acquired	0	$ 0
Gain on sale of assets	120,000,000
Customer relationships
Business Acquisition [Line Items]
Gross	22,383,000,000		22,950,000,000
Accumulated Amortization	(14,109,000,000)		(13,821,000,000)
Total	8,274,000,000		9,129,000,000
Developed technology
Business Acquisition [Line Items]
Gross	15,376,000,000		15,707,000,000
Accumulated Amortization	(11,011,000,000)		(10,974,000,000)
Total	4,365,000,000		4,733,000,000
Trade names
Business Acquisition [Line Items]
Gross	1,266,000,000		1,306,000,000
Accumulated Amortization	(833,000,000)		(816,000,000)
Total	433,000,000		490,000,000
Trade names
Business Acquisition [Line Items]
Indefinite-lived trade names	$ 3,755,000,000		$ 3,755,000,000