Goodwill and Intangible Assets (Intangible asset life) (Details)	12 Months Ended
	Oct. 31, 2021	Nov. 01, 2020
Purchased technology
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted-average remaining amortization period (in years)	4 years	5 years
Customer contracts and related relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted-average remaining amortization period (in years)	3 years	4 years
Order backlog
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted-average remaining amortization period (in years)	2 years	2 years
Trade names
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted-average remaining amortization period (in years)	8 years	9 years
Other
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted-average remaining amortization period (in years)	9 years	10 years