Consolidated Condensed Statements of Stockholders' Equity - USD ($) shares in Millions, $ in Millions	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Beginning Balance, Shares at Oct. 26, 2014		1,221.0			717.0
Beginning Balance at Oct. 26, 2014	$ 7,868	$ 12	$ 6,384	$ 13,072	$ (11,524)	$ (76)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	1,041			1,041
Other comprehensive income (loss), net of tax	(42)					(42)
Dividends	(366)			(366)
Share-based compensation	141		141
Issuance under stock plans, net of a tax benefit and other, Shares		12.0
Issuance under stock plans, net of a tax benefit and other	$ (40)		(40)
Common stock repurchases (in shares)	32.1	(32.0)			32.0
Common stock repurchases	$ (625)	$ 0			$ (625)
Ending Balance, Shares at Jul. 26, 2015		1,201.0			749.0
Ending Balance at Jul. 26, 2015	7,977	$ 12	6,485	13,747	$ (12,149)	(118)
Beginning Balance, Shares at Oct. 25, 2015		1,160.0			793.0
Beginning Balance at Oct. 25, 2015	7,613	$ 11	6,575	13,967	$ (12,848)	(92)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	1,111			1,111
Other comprehensive income (loss), net of tax	5					5
Dividends	(328)			(328)
Share-based compensation	150		150
Issuance under stock plans, net of a tax benefit and other, Shares		11.0
Issuance under stock plans, net of a tax benefit and other	$ (11)		(11)
Common stock repurchases (in shares)	89.5	(90.0)			90.0
Common stock repurchases	$ (1,721)	$ 0			$ (1,721)
Ending Balance, Shares at Jul. 31, 2016		1,081.0			883.0
Ending Balance at Jul. 31, 2016	$ 6,819	$ 11	$ 6,714	$ 14,750	$ (14,569)	$ (87)