Segment Information Schedule of Revenue by Market (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Jan. 31, 2016	Oct. 25, 2015	Jul. 26, 2015	Apr. 26, 2015	Jan. 25, 2015	Oct. 26, 2014	Jul. 27, 2014	Apr. 27, 2014	Jan. 31, 2016	Jan. 25, 2015	Jan. 26, 2014
Schedule of Revenue by Markets [Line Items]
Revenue	$ 1,401	$ 1,305	$ 1,153	$ 1,151	$ 1,251	$ 1,225	$ 1,103	$ 1,103	$ 5,010	$ 4,682	$ 4,130
Gaming
Schedule of Revenue by Markets [Line Items]
Revenue									2,818	2,058	1,511
Professional Visualization
Schedule of Revenue by Markets [Line Items]
Revenue									750	795	789
Data Center
Schedule of Revenue by Markets [Line Items]
Revenue									339	317	199
Automotive
Schedule of Revenue by Markets [Line Items]
Revenue									320	183	99
OEM and IP
Schedule of Revenue by Markets [Line Items]
Revenue									$ 783	$ 1,329	$ 1,532