Stockholders' Equity, Comprehensive Income and Share-Based Compensation (Changes in Components of AOCI) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Apr. 29, 2018	Apr. 30, 2017	Apr. 29, 2018	Apr. 30, 2017
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance			$ 9,349	$ 7,217
Other comprehensive loss before reclassifications			(16)	17
Amounts reclassified out of AOCI			2	(12)
Other comprehensive income (loss), net of tax	$ 1	$ (4)	(14)	5
Ending Balance	7,042	8,212	7,042	8,212
Unrealized Gain on Investments, Net
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance			53	30
Other comprehensive loss before reclassifications			(3)	14
Amounts reclassified out of AOCI			2	1
Other comprehensive income (loss), net of tax			(1)	15
Ending Balance	52	45	52	45
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 loss before reclassifications			(13)	3
Amounts reclassified out of AOCI			2	(3)
Other comprehensive income (loss), net of tax			(11)	0
Ending Balance	(22)	(18)	(22)	(18)
Defined and Postretirement Benefit Plans
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance			(120)	(141)
Other comprehensive loss before reclassifications			0	0
Amounts reclassified out of AOCI			(2)	(10)
Other comprehensive income (loss), net of tax			(2)	(10)
Ending Balance	(122)	(151)	(122)	(151)
Cumulative Translation Adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance			14	14
Other comprehensive loss before reclassifications			0	0
Amounts reclassified out of AOCI			0	0
Other comprehensive income (loss), 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			(64)	(115)
Other comprehensive income (loss), net of tax			(14)	5
Ending Balance	$ (78)	$ (110)	$ (78)	$ (110)