Unaudited Quarterly Consolidated Financial Data (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Oct. 30, 2016	Jul. 31, 2016	May 01, 2016	Jan. 31, 2016	Oct. 25, 2015	Jul. 26, 2015	Apr. 26, 2015	Jan. 25, 2015	Oct. 30, 2016	Oct. 25, 2015	Oct. 26, 2014
Unaudited Quarterly Consolidated Financial Data
Net sales	$ 3,297	$ 2,821	$ 2,450	$ 2,257	$ 2,368	$ 2,490	$ 2,442	$ 2,359	$ 10,825	$ 9,659	$ 9,072
Gross profit	1,399	1,192	1,004	916	959	1,018	1,016	959	4,511	3,952	3,843
Net income	$ 610	$ 505	$ 320	$ 286	$ 336	$ 329	$ 364	$ 348	$ 1,721	$ 1,377	$ 1,072
Diluted earnings per share (in dollars per share)	$ 0.56	$ 0.46	$ 0.29	$ 0.25	$ 0.28	$ 0.27	$ 0.29	$ 0.28	$ 1.54	$ 1.12	$ 0.87