Goodwill, Purchased Technology and Other Intangible Assets (Narrative) (Details) $ in Millions	12 Months Ended
Oct. 31, 2021 USD ($)
Finite-Lived Intangible Assets [Line Items]
Goodwill, period increase	$ 13
Minimum
Finite-Lived Intangible Assets [Line Items]
Useful Life	1 year
Maximum
Finite-Lived Intangible Assets [Line Items]
Useful Life	15 years

Amount of increase (decrease) of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267

Name:	us-gaap_GoodwillPeriodIncreaseDecrease
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration