Fair Value Measurements (Details Textual) (USD $)	3 Months Ended
	Jan. 25, 2015	Jan. 26, 2014	Oct. 26, 2014
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Fair value of level one and level two transfers amount	$ 0	$ 0
Fair Value, Measurements, Nonrecurring [Member] | Level 3 [Member]
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Equity investments in privately-held companies measured on non-recurring basis	9,000,000		9,000,000
Carrying Amount [Member]
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Long-term debt	1,900,000,000		1,900,000,000
Carrying Amount [Member] | Equity Investments In Privately Held Companies [Member] | Short Term And Long Term Investments [Member]
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Equity investments in privately-held companies measured on non-recurring basis	67,000,000		66,000,000
Portion at Cost [Member]
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Equity investments in privately-held companies measured on non-recurring basis	58,000,000		57,000,000
Estimated Fair Value [Member] | Level 2 [Member]
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Long-term debt	$ 2,200,000,000		$ 2,200,000,000