Revenue - Consolidate Balance Sheet (Details) - USD ($) $ in Millions	Jan. 31, 2019	Nov. 01, 2018	Oct. 31, 2018
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Trade accounts receivable, net	$ 1,039.2	$ 974.0	$ 1,014.1
Costs incurred in excess of amounts billed	40.2	40.1	0.0
Other current assets	43.7	40.6	37.0
Other noncurrent assets	122.7	121.1	109.6
Other accrued liabilities	175.7	158.9	152.7
Deferred income tax liability, net	29.2	40.3	37.8
Retained earnings	778.6	777.6	771.2
Under Historical Guidance
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Trade accounts receivable, net			1,014.1
Costs incurred in excess of amounts billed			0.0
Other current assets	38.9		37.0
Other noncurrent assets	111.4		109.6
Other accrued liabilities	170.9		152.7
Deferred income tax liability, net	27.3		37.8
Retained earnings	769.2		$ 771.2
Effect of Adoption | Accounting Standards Update 2014-09
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Trade accounts receivable, net		(40.1)
Costs incurred in excess of amounts billed		40.1
Other current assets	4.8	3.6
Other noncurrent assets	11.3	11.5
Other accrued liabilities	4.8	6.0
Deferred income tax liability, net	1.9	2.6
Retained earnings	$ 9.4	$ 6.5