Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jul. 28, 2019	Jul. 29, 2018	Jul. 28, 2019	Jul. 29, 2018
Numerator:
Net income	$ 552	$ 1,101	$ 947	$ 2,345
Denominator:
Basic weighted average shares (in shares)	609	607	608	607
Dilutive impact of outstanding securities:
Equity awards (in shares)	7	18	8	19
1.00% Convertible Senior Notes (in shares)	0	1	0	1
Diluted weighted average shares (in shares)	616	626	616	627
Net income per share:
Basic (in dollars per share)	$ 0.91	$ 1.81	$ 1.56	$ 3.86
Diluted (in dollars per share)	$ 0.90	$ 1.76	$ 1.54	$ 3.74
Equity awards excluded from diluted net income per share because their effect would have been anti-dilutive (in shares)	11	0	12	1
Convertible Debt
Debt Instrument [Line Items]
Debt interest rate	1.00%		1.00%