Warranty, Guarantees, Commitments and Contingencies (Narrative) (Details) $ in Millions	12 Months Ended
Oct. 25, 2020 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Products warranty period	12 months
Maximum potential amount of future payments for letters of credit or other guarantee instruments	$ 233
Parent guarantees to banks	$ 153

Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=121555522&loc=d3e12069-110248

Name:	us-gaap_GuaranteeObligationsMaximumExposure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant