Fair Value Measurements (Details Textual) - USD ($)	Jul. 30, 2017	Oct. 30, 2016	Jul. 31, 2016
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Fair value of transfers from level one to level two	$ 0		$ 0
Fair value of transfers from level two to level one	0		0
Recurring fair value measurements
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Investment securities	7,091,000,000	$ 3,505,000,000
Recurring fair value measurements | Level 2
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Investment securities	3,787,000,000	1,442,000,000
Recurring fair value measurements | Level 3
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Investment securities	0		$ 0
Carrying amount
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Long-term debt	5,300,000,000	3,100,000,000
Estimated fair value | Level 2
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Long-term debt	5,800,000,000	3,500,000,000
Short Term And Long Term Investments | Carrying amount | Equity investments in privately-held companies
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Equity investments in privately-held companies measured on non-recurring basis	76,000,000	70,000,000
Short Term And Long Term Investments | Portion at cost | Equity investments in privately-held companies
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Equity investments in privately-held companies measured on non-recurring basis	67,000,000	62,000,000
Short Term And Long Term Investments | Estimated fair value | Equity investments in privately-held companies | Nonrecurring fair value measurements | Level 3
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Equity investments in privately-held companies measured on non-recurring basis	$ 9,000,000	$ 8,000,000