Stockholders' Equity, Comprehensive Income and Share-Based Compensation (Changes in Components of AOCI) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 30, 2017	Jul. 31, 2016	Jul. 30, 2017	Jul. 31, 2016
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance			$ 7,217	$ 7,613
Other comprehensive income (loss) before reclassifications			29	(10)
Amounts reclassified out of AOCI			(15)	15
Other comprehensive income, net of tax	$ 9	$ 8	14	5
Ending Balance	8,716	6,819	8,716	6,819
Unrealized Gain on Investments, Net
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance			30	14
Other comprehensive income (loss) before reclassifications			23	21
Amounts reclassified out of AOCI			2	0
Other comprehensive income, net of tax			25	21
Ending Balance	55	35	55	35
Unrealized Gain (Loss) on Derivative Instruments Qualifying as Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance			(18)	(15)
Other comprehensive income (loss) before reclassifications			6	(31)
Amounts reclassified out of AOCI			(5)	15
Other comprehensive income, net of tax			1	(16)
Ending Balance	(17)	(31)	(17)	(31)
Defined and Postretirement Benefit Plans
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance			(141)	(105)
Other comprehensive income (loss) before reclassifications			0	0
Amounts reclassified out of AOCI			(12)	0
Other comprehensive income, net of tax			(12)	0
Ending Balance	(153)	(105)	(153)	(105)
Cumulative Translation Adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance			14	14
Other comprehensive income (loss) before reclassifications			0	0
Amounts reclassified out of AOCI			0	0
Other comprehensive income, net of tax			0	0
Ending Balance	14	14	14	14
AOCI Attributable to Parent
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance			(115)	(92)
Other comprehensive income, net of tax			14	5
Ending Balance	$ (101)	$ (87)	$ (101)	$ (87)