Employee Benefit Plans (Fair Value of Plan Assets) (Details) - USD ($) $ in Millions	Oct. 29, 2017	Oct. 30, 2016	Oct. 25, 2015	Oct. 26, 2014
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan of assets	$ 361	$ 310	$ 281	$ 268
Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan of assets	101	79
Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan of assets	13	12
Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan of assets	38	38	$ 40
Equity securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan of assets	83	59
Equity securities | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan of assets	83	59
Equity securities | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan of assets	0	0
Equity securities | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan of assets	0	0
Debt securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan of assets	16	12
Debt securities | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan of assets	16	12
Debt securities | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan of assets	0	0
Debt securities | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan of assets	0	0
Insurance contracts
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan of assets	38	38
Insurance contracts | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan of assets	0	0
Insurance contracts | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan of assets	0	0
Insurance contracts | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan of assets	38	38
Other investments
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan of assets	13	12
Other investments | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan of assets	0	0
Other investments | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan of assets	13	12
Other investments | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan of assets	0	0
Cash
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan of assets	2	8
Cash | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan of assets	2	8
Cash | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan of assets	0	0
Cash | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan of assets	0	0
Total assets at fair value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan of assets	152	129
Assets measured at net asset value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan of assets	$ 209	$ 181