Revenue - Consolidated Balance Sheet (Details) - USD ($) $ in Millions	Jul. 31, 2019	Nov. 01, 2018	Oct. 31, 2018
ASSETS
Trade accounts receivable, net	$ 1,061.3	$ 974.0	$ 1,014.1
Costs incurred in excess of amounts billed	68.4	40.1	0.0
Other current assets	53.5	40.6	37.0
Other noncurrent assets	120.2	121.1	109.6
LIABILITIES AND STOCKHOLDERS’ EQUITY
Other accrued liabilities	166.4	158.9	152.7
Deferred income tax liability, net	31.6	40.3	37.8
Retained earnings	820.5	777.6	771.2
Under Historical Guidance
ASSETS
Trade accounts receivable, net			1,014.1
Costs incurred in excess of amounts billed			0.0
Other current assets	44.0		37.0
Other noncurrent assets	108.0		109.6
LIABILITIES AND STOCKHOLDERS’ EQUITY
Other accrued liabilities	159.9		152.7
Deferred income tax liability, net	30.7		37.8
Retained earnings	806.2		$ 771.2
Effect of Adoption | Accounting Standards Update 2014-09
ASSETS
Trade accounts receivable, net		(40.1)
Costs incurred in excess of amounts billed		40.1
Other current assets	9.5	3.6
Other noncurrent assets	12.2	11.5
LIABILITIES AND STOCKHOLDERS’ EQUITY
Other accrued liabilities	6.6	6.0
Deferred income tax liability, net	0.9	2.6
Retained earnings	$ 14.3	$ 6.5