Stockholders' Equity, Comprehensive Income and Share-Based Compensation (Changes in Components of AOCI) (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 28, 2018	Jan. 29, 2017
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance	$ 9,349	$ 7,217
Other comprehensive income (loss) before reclassifications	(8)	10
Amounts reclassified out of AOCI	(7)	(1)
Other comprehensive (loss) income, net of tax	(15)	9
Ending Balance	8,506	7,687
Unrealized Gain on Investments, Net
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance	53	30
Other comprehensive income (loss) before reclassifications	6	0
Amounts reclassified out of AOCI	0	1
Other comprehensive (loss) income, net of tax	6	1
Ending Balance	59	31
Unrealized Gain (Loss) on Derivative Instruments Qualifying as Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance	(11)	(18)
Other comprehensive income (loss) before reclassifications	(14)	10
Amounts reclassified out of AOCI	(5)	5
Other comprehensive (loss) income, net of tax	(19)	15
Ending Balance	(30)	(3)
Defined and Postretirement Benefit Plans
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance	(120)	(141)
Other comprehensive income (loss) before reclassifications	0	0
Amounts reclassified out of AOCI	(2)	(7)
Other comprehensive (loss) income, net of tax	(2)	(7)
Ending Balance	(122)	(148)
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 (loss) income, net of tax	0	0
Ending Balance	14	14
AOCI Attributable to Parent
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance	(64)	(115)
Other comprehensive (loss) income, net of tax	(15)	9
Ending Balance	$ (79)	$ (106)