Stockholders' Equity, Comprehensive Income and Share-Based Compensation (Narrative) (Details)	12 Months Ended
	Oct. 29, 2017 USD ($) Plan $ / shares shares	Oct. 30, 2016 USD ($) $ / shares shares	Oct. 25, 2015 USD ($) $ / shares shares	Sep. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Apr. 30, 2015 USD ($)
Equity [Line Items]
Tax effects on net income of amounts reclassified from AOCI | $		$ 22,000,000
Stock Repurchase Program
Authorized amount | $				$ 3,000,000,000.0	$ 2,000,000,000	$ 3,000,000,000
Remaining authorized repurchase amount | $	$ 3,600,000,000
Dividends
Quarterly cash dividend declared (usd per share) | $ / shares	$ 0.10	$ 0.10	$ 0.10
Payments of dividends | $	$ 430,000,000	$ 444,000,000	$ 487,000,000
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 | shares	3,000,000	6,000,000	5,000,000
Employee Stock
Share-based Compensation
Total unrecognized compensation expense | $	$ 324,000,000
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, Restricted Stock Units, Restricted Stock, Performance Shares and Performance Units
Stock options scheduled to expire	7 years
Options granted (in shares) | shares	0	0	0
Stock Options | Employee Stock Incentive Plan
Share-based Compensation
Number of shares available for grant | shares	91,000,000
Stock Options | Employee Stock Purchase Plan
Share-based Compensation
Number of shares available for grant | shares	20,000,000
Stock Options | Minimum
Stock Options, Restricted Stock Units, Restricted Stock, Performance Shares and Performance Units
Stock options scheduled to be vested	3 years
Stock Options | Maximum
Stock Options, Restricted Stock Units, Restricted Stock, Performance Shares and Performance Units
Stock options scheduled to be vested	4 years
Performance Shares/Performance Units
Stock Options, Restricted Stock Units, Restricted Stock, Performance Shares and Performance Units
Award measurement period	3 years
Additional performance-based awards to be earned upon certain levels of achievement (in shares) | shares	1,000,000
Performance Shares/Performance Units | Minimum
Stock Options, Restricted Stock Units, Restricted Stock, Performance Shares and Performance Units
Award vesting rights as percentage of target amount	0.00%
Performance Shares/Performance Units | Maximum
Stock Options, Restricted Stock Units, Restricted Stock, Performance Shares and Performance Units
Award vesting rights as percentage of target amount	200.00%
Restricted Stock Units, Restricted Stock, Performance Shares and Performance Units
Stock Options, Restricted Stock Units, Restricted Stock, Performance Shares and Performance Units
Stock options scheduled to be vested	4 years
Officer | Performance Shares/Performance Units
Stock Options, Restricted Stock Units, Restricted Stock, Performance Shares and Performance Units
Award measurement period	2 years