SEGMENT INFORMATION - Net revenue by product and services (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 28, 2016	Oct. 30, 2015	Oct. 28, 2016	Oct. 30, 2015
Revenue from External Customer [Line Items]
Consolidated net revenue:	$ 16,247	$ 12,674	$ 41,568	$ 38,232
Operating Segments
Revenue from External Customer [Line Items]
Consolidated net revenue:	16,465	12,647	41,648	38,222
Operating Segments | Client Solutions Group
Revenue from External Customer [Line Items]
Consolidated net revenue:	9,187	8,936	26,978	27,040
Operating Segments | Client Solutions Group | Commercial
Revenue from External Customer [Line Items]
Consolidated net revenue:	6,400	6,437	19,343	19,778
Operating Segments | Client Solutions Group | Consumer
Revenue from External Customer [Line Items]
Consolidated net revenue:	2,787	2,499	7,635	7,262
Operating Segments | Infrastructure Solutions Group
Revenue from External Customer [Line Items]
Consolidated net revenue:	5,989	3,711	13,381	11,182
Operating Segments | Infrastructure Solutions Group | Servers and networking
Revenue from External Customer [Line Items]
Consolidated net revenue:	2,910	3,163	9,222	9,527
Operating Segments | Infrastructure Solutions Group | Storage
Revenue from External Customer [Line Items]
Consolidated net revenue:	3,079	548	4,159	1,655
Operating Segments | VMware
Revenue from External Customer [Line Items]
Consolidated net revenue:	$ 1,289	$ 0	$ 1,289	$ 0