Goodwill, Purchased Technology and Other Intangible Assets (Details Textual) (USD $)	3 Months Ended	9 Months Ended			3 Months Ended
	Apr. 29, 2012	Jul. 29, 2012 Y	Apr. 01, 2012 Energy and Environmental Solutions [Member]	Apr. 01, 2012 Display [Member]	Apr. 29, 2012 Silicon Systems Group [Member]
Goodwill, Purchased Technology and Other Intangible Assets (Textual) [Abstract]
Estimated fair value in excess of carrying value			$ 700,000,000
Percent fair value exceeds carrying value			73.00%	100.00%
Increase in goodwill and other indefinite-lived intangible assets		2,700,000,000
Increase in goodwill	64,000,000				44,000,000
Intangible assets, useful life, minimum (in years)		1
Intangible assets, useful life, maximum (in years)		15
Change in gross carrying amount of the amortized intangible assets		$ 1,200,000,000