Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		3 Months Ended
		Apr. 29, 2018	Apr. 30, 2017
Numerator:
Net income		$ 1,244	$ 507
Denominator:
Basic weighted average shares		606	592
Dilutive impact of outstanding securities:
Equity awards		20	26
1.00% Convertible Senior Notes		1	14
Warrants issued with the 1.00% Convertible Senior Notes		0	9
Diluted weighted average shares		627	641
Net income per share:
Basic net income per share	[1]	$ 2.05	$ 0.86
Diluted net income per share	[2]	$ 1.98	$ 0.79
Equity awards excluded from diluted net income per share because their effect would have been anti-dilutive		1	2
Stated interest rate, Convertible Notes		1.00%
Conversion price - Convertible Notes		$ 20.0296
Average stock price		$ 235.10

[1] Calculated as net income divided by basic weighted average shares.

[2] Calculated as net income divided by diluted weighted average shares.