CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Apr. 28, 2019	Apr. 29, 2018
Income Statement [Abstract]
Revenue	$ 2,220	$ 3,207
Cost of revenue	924	1,139
Gross profit	1,296	2,068
Operating expenses
Research and development	674	542
Sales, general and administrative	264	231
Total operating expenses	938	773
Income from operations	358	1,295
Interest income	44	25
Interest expense	(13)	(15)
Other, net	0	6
Total other income (expense)	31	16
Income before income tax	389	1,311
Income tax expense (benefit)	(5)	67
Net income	$ 394	$ 1,244
Net income per share:
Basic (in dollars per share)	$ 0.65	$ 2.05
Diluted (in dollars per share)	$ 0.64	$ 1.98
Weighted average shares used in per share computation:
Basic (in shares)	607	606
Diluted (in shares)	616	627