Goodwill and Other Intangibles Assets - Other Intangible Assets, Net (Detail) - USD ($) $ in Millions		12 Months Ended
		Oct. 31, 2015	Oct. 31, 2014
Acquired Indefinite-lived Intangible Assets [Line Items]
Gross Carrying Amount	[1]	$ 260.8	$ 259.7
Accumulated Amortization	[1]	(149.4)	(132.2)
Total	[1]	$ 111.4	127.5
Intangible assets weighted average useful life		13 years
Customer contracts and relationships
Acquired Indefinite-lived Intangible Assets [Line Items]
Gross Carrying Amount		$ 255.2	253.3
Accumulated Amortization		(144.3)	(127.1)
Total		110.9	126.2
Trademarks and trade names
Acquired Indefinite-lived Intangible Assets [Line Items]
Gross Carrying Amount		3.9	4.5
Accumulated Amortization		(3.5)	(3.7)
Total		0.4	0.8
Contract rights and other
Acquired Indefinite-lived Intangible Assets [Line Items]
Gross Carrying Amount		1.7	1.9
Accumulated Amortization		(1.6)	(1.4)
Total		$ 0.1	$ 0.5

[1] These intangible assets are being amortized over the expected period of benefit, with a weighted average life of approximately 13 years.