Financial Instruments and Fair Value Measurements - Recurring Fair Value Measurements (Details) - USD ($) $ in Millions	Oct. 31, 2020	Oct. 31, 2019
Fair Value Assets Measured On Recurring Basis [Line Items]
Fair Value Measurement	$ (7.7)	$ 7.6
Other current assets and other long-term assets
Fair Value Assets Measured On Recurring Basis [Line Items]
Fair Value Measurement		1.3
Other current assets and other long-term assets | Cross currency swap
Fair Value Assets Measured On Recurring Basis [Line Items]
Fair Value Measurement	8.9	10.6
Other long-term assets
Fair Value Assets Measured On Recurring Basis [Line Items]
Fair Value Measurement	21.4	20.0
Other current liabilities and other long-term liabilities
Fair Value Assets Measured On Recurring Basis [Line Items]
Fair Value Measurement	(37.9)	(25.0)
Other current assets | Foreign exchange hedges
Fair Value Assets Measured On Recurring Basis [Line Items]
Fair Value Measurement	1.5	0.9
Other current liabilities | Foreign exchange hedges
Fair Value Assets Measured On Recurring Basis [Line Items]
Fair Value Measurement	(1.6)	(0.2)
Level 1
Fair Value Assets Measured On Recurring Basis [Line Items]
Fair Value Measurement	0.0	0.0
Level 1 | Other current assets and other long-term assets
Fair Value Assets Measured On Recurring Basis [Line Items]
Fair Value Measurement		0.0
Level 1 | Other current assets and other long-term assets | Cross currency swap
Fair Value Assets Measured On Recurring Basis [Line Items]
Fair Value Measurement	0.0	0.0
Level 1 | Other long-term assets
Fair Value Assets Measured On Recurring Basis [Line Items]
Fair Value Measurement	0.0	0.0
Level 1 | Other current liabilities and other long-term liabilities
Fair Value Assets Measured On Recurring Basis [Line Items]
Fair Value Measurement	0.0	0.0
Level 1 | Other current assets | Foreign exchange hedges
Fair Value Assets Measured On Recurring Basis [Line Items]
Fair Value Measurement	0.0	0.0
Level 1 | Other current liabilities | Foreign exchange hedges
Fair Value Assets Measured On Recurring Basis [Line Items]
Fair Value Measurement	0.0	0.0
Level 2
Fair Value Assets Measured On Recurring Basis [Line Items]
Fair Value Measurement	(29.1)	(12.4)
Level 2 | Other current assets and other long-term assets
Fair Value Assets Measured On Recurring Basis [Line Items]
Fair Value Measurement		1.3
Level 2 | Other current assets and other long-term assets | Cross currency swap
Fair Value Assets Measured On Recurring Basis [Line Items]
Fair Value Measurement	8.9	10.6
Level 2 | Other long-term assets
Fair Value Assets Measured On Recurring Basis [Line Items]
Fair Value Measurement	0.0	0.0
Level 2 | Other current liabilities and other long-term liabilities
Fair Value Assets Measured On Recurring Basis [Line Items]
Fair Value Measurement	(37.9)	(25.0)
Level 2 | Other current assets | Foreign exchange hedges
Fair Value Assets Measured On Recurring Basis [Line Items]
Fair Value Measurement	1.5	0.9
Level 2 | Other current liabilities | Foreign exchange hedges
Fair Value Assets Measured On Recurring Basis [Line Items]
Fair Value Measurement	(1.6)	(0.2)
Level 3
Fair Value Assets Measured On Recurring Basis [Line Items]
Fair Value Measurement	21.4	20.0
Level 3 | Other current assets and other long-term assets
Fair Value Assets Measured On Recurring Basis [Line Items]
Fair Value Measurement		0.0
Level 3 | Other current assets and other long-term assets | Cross currency swap
Fair Value Assets Measured On Recurring Basis [Line Items]
Fair Value Measurement	0.0	0.0
Level 3 | Other long-term assets
Fair Value Assets Measured On Recurring Basis [Line Items]
Fair Value Measurement	21.4	20.0
Level 3 | Other current liabilities and other long-term liabilities
Fair Value Assets Measured On Recurring Basis [Line Items]
Fair Value Measurement	0.0	0.0
Level 3 | Other current assets | Foreign exchange hedges
Fair Value Assets Measured On Recurring Basis [Line Items]
Fair Value Measurement	0.0	0.0
Level 3 | Other current liabilities | Foreign exchange hedges
Fair Value Assets Measured On Recurring Basis [Line Items]
Fair Value Measurement	$ 0.0	$ 0.0