Business Combinations (Details Textuals) (USD $)	3 Months Ended								12 Months Ended				0 Months Ended		12 Months Ended			12 Months Ended
	Oct. 27, 2013	Jul. 28, 2013	Apr. 28, 2013	Jan. 27, 2013	Oct. 28, 2012	Jul. 29, 2012	Apr. 29, 2012	Jan. 29, 2012	Oct. 27, 2013	Oct. 28, 2012	Oct. 30, 2011	Sep. 24, 2013 Tokyo Electron Limited [Member]	Sep. 24, 2013 Tokyo Electron Limited [Member] Former Applied Materials Shareholders [Member]	Sep. 24, 2013 Tokyo Electron Limited [Member] Former TEL Shareholders [Member]	Oct. 28, 2012 Varian Semiconductor Equipment Associates, Inc [Member]	Oct. 30, 2011 Varian Semiconductor Equipment Associates, Inc [Member]	Nov. 10, 2011 Varian Semiconductor Equipment Associates, Inc [Member]	Oct. 28, 2012 Varian Semiconductor Equipment Associates, Inc [Member] Silicon Systems Group [Member]
Business Combination (Textuals) [Abstract]
Shares to be issued as part of combination, conversion ratio														3.25
Shares to be received as part of combination, conversion ratio													1
Percentage of voting interests acquired													68.00%	32.00%
Expected stock repurchase of resulting entity in the next fiscal year												$ 3,000,000,000.0
Termination fee												400,000,000
Purchase price, net of cash acquired																	4,200,000,000
Assumed equity awards																	27,000,000
Goodwill acquired															2,600,000,000			1,800,000,000
Net sales	1,988,000,000	1,975,000,000	1,973,000,000	1,573,000,000	1,646,000,000	2,343,000,000	2,541,000,000	2,189,000,000	7,509,000,000	8,719,000,000	10,517,000,000				1,000,000,000
Operating income (loss)									432,000,000	411,000,000	2,398,000,000				(148,000,000)
Business acquisition charges															332,000,000
Business acquisition costs not allocated to segments															45,000,000
Pro forma non recurring adjustments																$ 128,000,000