Income Taxes (Details) $ in Millions	12 Months Ended
Oct. 31, 2018 USD ($)
Income Tax Disclosure [Abstract]
Provisional tax expense	$ 472.8

Tax Cuts And Jobs Act, Incomplete Accounting, Provisional Income Tax Expense (Benefit)

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration