Fair Value Measurements (Details Textual) - USD ($)	3 Months Ended
	Jan. 31, 2016	Oct. 25, 2015
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Fair value of level one and level two transfers amount	$ 0
Carrying Amount [Member]
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Long-term debt	3,300,000,000
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	58,000,000	$ 78,000,000
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	50,000,000	70,000,000
Estimated fair value [Member] | Level 2 [Member]
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Long-term debt	3,500,000,000
Estimated fair value [Member] | 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	$ 8,000,000	$ 8,000,000