Restructuring and Related Costs - Reconciliation Restructuring (Details) $ in Millions	3 Months Ended
	Jan. 31, 2016 USD ($)
Restructuring Reserve [Roll Forward]
Balance, at beginning of period	$ 6.6
Cost recognized	7.2	[1]
Payments	(1.9)
Balance, at end of period	11.9
External Support Fees
Restructuring Reserve [Roll Forward]
Balance, at beginning of period	2.1
Cost recognized	4.6	[1]
Payments	0.0
Balance, at end of period	6.7
Employee Severance
Restructuring Reserve [Roll Forward]
Balance, at beginning of period	4.3
Cost recognized	1.8	[1]
Payments	(1.5)
Balance, at end of period	4.6
Lease Exit and Other
Restructuring Reserve [Roll Forward]
Balance, at beginning of period	0.2
Cost recognized	0.8	[1]
Payments	(0.4)
Balance, at end of period	$ 0.6

[1] The results by segment, as disclosed in Note 15, “Segment Information,” exclude these costs, consistent with the manner in which our management evaluates the performance of each reportable segment based on its respective operating profit results. These costs are included within Corporate expenses.