CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 28, 2016	Oct. 30, 2015	Oct. 28, 2016	Oct. 30, 2015
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (2,075)	$ (180)	$ (1,448)	$ (949)
Foreign currency translation adjustments	(256)	(21)	(214)	(68)
Investments:
Change in unrealized losses	(5)	0	(5)	0
Reclassification adjustment for net (gains) losses realized in net loss	0	0	0	0
Net change in market value of investments	(5)	0	(5)	0
Net change in cash flow hedges
Change in unrealized gains (losses)	82	12	(25)	72
Reclassification adjustment for net (gains) losses included in net loss	(17)	(39)	64	(311)
Net change in cash flow hedges	65	(27)	39	(239)
Total other comprehensive loss, net of tax benefit (expense) of $(3) and $4, respectively and $2 and $12, respectively	(196)	(48)	(180)	(307)
Comprehensive loss, net of tax	(2,271)	(228)	(1,628)	(1,256)
Less: Net loss attributable to non-controlling interests	(11)	0	(12)	0
Less: Other comprehensive income (loss) attributable to non-controlling interests	0	0	0	0
Comprehensive loss, net of tax	$ (2,260)	$ (228)	$ (1,616)	$ (1,256)