Goodwill (Details) - USD ($) $ in Millions	Jan. 28, 2018	Jan. 29, 2017
Goodwill [Line Items]
Goodwill	$ 618	$ 618
Icera
Goodwill [Line Items]
Goodwill	271	271
Portal Player
Goodwill [Line Items]
Goodwill	105	105
Mental Images
Goodwill [Line Items]
Goodwill	59	59
3dfx
Goodwill [Line Items]
Goodwill	50	50
MediaQ
Goodwill [Line Items]
Goodwill	35	35
ULi
Goodwill [Line Items]
Goodwill	31	31
Other
Goodwill [Line Items]
Goodwill	67	67
GPU
Goodwill [Line Items]
Goodwill	210	210
Tegra processor
Goodwill [Line Items]
Goodwill	$ 408	$ 408