Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h)(2))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32698-109319

Name:	us-gaap_EffectiveIncomeTaxRateContinuingOperations
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Income Taxes (Details Textual) - USD ($) $ in Billions	3 Months Ended		9 Months Ended		12 Months Ended
Income Taxes (Details Textual) - USD ($) $ in Billions	Jul. 29, 2018	Jul. 30, 2017	Jul. 29, 2018	Jul. 30, 2017	Oct. 28, 2018
Income Tax Contingency [Line Items]
Effective income tax rate provision (as percent)	5.30%	5.40%	34.10%	7.70%
Provisional tax expense for Tax Cuts and Jobs Act of 2017			$ 1.1
Scenario, Forecast
Income Tax Contingency [Line Items]
Effective income tax rate					23.40%