Stockholders' Equity, Comprehensive Income and Share-Based Compensation (Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 30, 2016	Oct. 25, 2015	Oct. 26, 2014
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	$ (92)	$ (76)	$ (38)
Other comprehensive income (loss) before reclassifications	(61)	(25)	(26)
Amounts reclassified out of AOCI	38	9	(12)
Other comprehensive income (loss), net of tax	(23)	(16)	(38)
Ending balance	(115)	(92)	(76)
Unrealized Gain (Loss) on Investments, Net
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	14	24	25
Other comprehensive income (loss) before reclassifications	14	(11)	8
Amounts reclassified out of AOCI	2	1	(9)
Other comprehensive income (loss), net of tax	16	(10)	(1)
Ending balance	30	14	24
Unrealized Gain (Loss) on Derivative Instruments Qualifying as Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(15)	0	2
Other comprehensive income (loss) before reclassifications	(33)	(9)	4
Amounts reclassified out of AOCI	30	(6)	(6)
Other comprehensive income (loss), net of tax	(3)	(15)	(2)
Ending balance	(18)	(15)	0
Defined and Postretirement Benefit Plans
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(105)	(105)	(72)
Other comprehensive income (loss) before reclassifications	(42)	(5)	(36)
Amounts reclassified out of AOCI	6	5	3
Other comprehensive income (loss), net of tax	(36)	0	(33)
Ending balance	(141)	(105)	(105)
Cumulative Translation Adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	14	5	7
Other comprehensive income (loss) before reclassifications	0	0	(2)
Amounts reclassified out of AOCI	0	9	0
Other comprehensive income (loss), net of tax	0	9	(2)
Ending balance	$ 14	$ 14	$ 5