INCOME AND OTHER TAXES - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 28, 2016	Oct. 30, 2015	Oct. 28, 2016	Oct. 30, 2015	Sep. 07, 2016	Jan. 29, 2016
Income Tax Disclosure [Abstract]
Effective income tax rate (as a percent)	29.00%	6.00%	21.10%	8.10%
Pre-tax losses	$ (2,306)	$ (281)	$ (2,946)	$ (1,088)
U.S. federal statutory rate (as a percent)			35.00%
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Unrecognized tax benefits, net	3,800		$ 3,800			$ 3,100
EMC
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Net deferred tax liabilities acquired					$ 6,200
Unrecognized tax benefits, net	$ 547		$ 547