Revenue - Contract with Customer, Asset and Liability (Details) - USD ($)	9 Months Ended
	Jul. 31, 2019	Nov. 01, 2018
Revenue from Contract with Customer [Abstract]
Billed trade receivables	$ 1,018,000,000.0	$ 918,900,000
Unbilled trade receivables	65,900,000	74,300,000
Costs incurred in excess of amounts billed	68,400,000	40,100,000
Capitalized commissions	21,800,000	$ 15,100,000
Capitalized contract price	13,000,000.0
Capitalized contract cost, amortization	6,300,000
Capitalized contract cost, impairment loss	0
Contract with Customer, Liabilities [Roll Forward]
Contract liabilities, balance at beginning of period	41,700,000
Additional contract liabilities	294,900,000
Recognition of deferred revenue	(294,400,000)
Contract liabilities, balance at end of period	$ 42,300,000