Stockholders' Equity, Comprehensive Income and Share-Based Compensation (Narrative) (Details)	12 Months Ended
	Oct. 30, 2016 USD ($) Plan $ / shares shares	Oct. 25, 2015 USD ($) $ / shares shares	Oct. 26, 2014 USD ($) $ / shares shares	Jun. 09, 2016 USD ($)	Apr. 26, 2015 USD ($)
Equity [Line Items]
Tax effects on net income of amounts reclassified from AOCI | $	$ 22,000,000
Stock Repurchase Program
Authorized amount | $				$ 2,000,000,000.0	$ 3,000,000,000.0
Remaining authorized repurchase amount | $	$ 1,800,000,000
Shares of common stock repurchased (in shares)	96,000,000	76,000,000	0
Dividends
Quarterly cash dividend declared (usd per share) | $ / shares	$ 0.10	$ 0.10	$ 0.10
Payments of dividends | $	$ 444,000,000	$ 487,000,000	$ 485,000,000
Share-based Compensation
Number of employee stock purchase plans | Plan	2
Employee Stock Purchase Plan
Employee Stock Purchase Plans
Purchase period		6 months
Number of shares issued under the ESPP	6,000,000	5,000,000	6,000,000
Employee Stock
Share-based Compensation
Total unrecognized compensation expense | $	$ 270,000,000
Weighted average period for unrecognized compensation expense to be recognized	2 years 4 months 25 days
Employee Stock Purchase Plans
Purchase price of common stock, percent	85.00%
Stock Options
Stock Options
Stock options scheduled to expire	7 years
Options granted	0	0	0
Stock Options | Employee Stock Incentive Plan
Share-based Compensation
Number of shares available for grant	107,000,000
Stock Options | Employee Stock Purchase Plan
Share-based Compensation
Number of shares available for grant	23,000,000
Stock Options | Minimum
Stock Options
Stock options scheduled to be vested	3 years
Stock Options | Maximum
Stock Options
Stock options scheduled to be vested	4 years
Performance Shares/Performance Units
Equity [Line Items]
Additional Performance-based Awards To Be Earned Upon Certain Levels Of Achievement	1,000,000
Performance Shares/Performance Units | Minimum
Stock Options
Stock options scheduled to be vested	3 years
Performance Shares/Performance Units | Maximum
Stock Options
Stock options scheduled to be vested	4 years
Restricted Stock Units, Restricted Stock, Performance Shares and Performance Units
Stock Options
Stock options scheduled to be vested	4 years
Officer | Performance Shares/Performance Units
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award, Award Measurement Period	2 years