NON-CONTROLLING INTERESTS - Narrative (Details) - USD ($) $ in Millions	Oct. 28, 2016	Jan. 29, 2016	Oct. 30, 2015	Jan. 30, 2015
Noncontrolling Interest [Line Items]
Noncontrolling interest	$ 19,819	$ 1,466	$ 1,689	$ 2,904
SecureWorks
Noncontrolling Interest [Line Items]
Ownership percent in non-controlling interest	87.50%
VMware
Noncontrolling Interest [Line Items]
Ownership percent in non-controlling interest	83.30%
Pivotal
Noncontrolling Interest [Line Items]
Ownership percent in non-controlling interest	77.40%
Non-Controlling Interest
Noncontrolling Interest [Line Items]
Noncontrolling interest	$ 5,939
Non-Controlling Interest | SecureWorks
Noncontrolling Interest [Line Items]
Noncontrolling interest	88	$ 0
Non-Controlling Interest | VMware
Noncontrolling Interest [Line Items]
Noncontrolling interest	4,967
Non-Controlling Interest | Pivotal
Noncontrolling Interest [Line Items]
Noncontrolling interest	$ 884