ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - Reclassifications Out of Accumulated Other Comprehensive Income (Loss), Net of Tax, to Net Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 31, 2020	Aug. 02, 2019	Jul. 31, 2020	Aug. 02, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net revenue	$ 22,733	$ 23,370	$ 44,630	$ 45,278
Cost of net revenue	(15,577)	(16,044)	(30,621)	(31,155)
Operating expenses	6,020	6,807	12,171	13,054
Total reclassifications, net of tax	1,099	4,232	1,281	4,561
Total reclassifications, net of tax
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net revenue	9	68	105	126
Cost of net revenue	(1)	0	3	0
Operating expenses	(2)	0	(4)	0
Total reclassifications, net of tax	6	68	104	126
Total reclassifications, net of tax | Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net revenue	9	68	105	126
Cost of net revenue	(1)	0	3	0
Operating expenses	0	0	0	0
Total reclassifications, net of tax	8	68	108	126
Total reclassifications, net of tax | Pensions
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net revenue	0	0	0	0
Cost of net revenue	0	0	0	0
Operating expenses	(2)	0	(4)	0
Total reclassifications, net of tax	$ (2)	$ 0	$ (4)	$ 0