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Financial Instruments and Fair Value Measurements - Summary of Losses of Long Lived Assets at Fair Value on Non-recurring Basis (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2012
Impairment Of Long Lived Assets [Line Items]
Long-lived assets held and used	$ 35.5	$ 31.4	$ 13.2
Total	35.5us-gaap_TangibleAssetImpairmentCharges	31.4us-gaap_TangibleAssetImpairmentCharges	13.2us-gaap_TangibleAssetImpairmentCharges
Level 3 [Member]
Impairment Of Long Lived Assets [Line Items]
Long-lived assets held and used	14.1	27.4	3.0
Long-lived assets held for sale or disposal	21.4	4.0	10.2
Total	$ 35.5	$ 31.4	$ 13.2

- Definition

The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

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