Hedging Instruments - Schedule of Notional Amounts of Outstanding Derivative Positions (Details) - Apr. 30, 2020 € in Millions, ₩ in Millions, ¥ in Millions, £ in Millions, kr in Millions, Kč in Millions, $ in Millions, $ in Millions, $ in Millions, $ in Millions, $ in Millions	JPY (¥)	GBP (£)	AUD ($)	CZK (Kč)	EUR (€)	HKD ($)	DKK (kr)	NZD ($)	KRW (₩)	USD ($)	SGD ($)
Foreign exchange forward contracts | Not Designated as Hedging Instrument | Japan, Yen
Derivative [Line Items]
Derivative notional amount	¥ 488.9									$ 4.6
Foreign exchange forward contracts | Not Designated as Hedging Instrument | United States of America, Dollars
Derivative [Line Items]
Derivative notional amount										130.4
Foreign exchange forward contracts | Not Designated as Hedging Instrument | Euro Member Countries, Euro
Derivative [Line Items]
Derivative notional amount					€ 6.8					7.6
Foreign exchange forward contracts | Not Designated as Hedging Instrument | Australia, Dollars
Derivative [Line Items]
Derivative notional amount			$ 26.0							16.5
Foreign exchange forward contracts | Not Designated as Hedging Instrument | Czech Republic, Koruny
Derivative [Line Items]
Derivative notional amount				Kč 154.3						6.3
Foreign exchange forward contracts | Not Designated as Hedging Instrument | Korea (South), Won
Derivative [Line Items]
Derivative notional amount									₩ 60,528.9	49.5
Foreign exchange forward contracts | Not Designated as Hedging Instrument | New Zealand, Dollars
Derivative [Line Items]
Derivative notional amount								$ 10.8		6.6
Foreign exchange forward contracts | Not Designated as Hedging Instrument | China, Yuan Renminbi
Derivative [Line Items]
Derivative notional amount								361.2		51.6
Foreign exchange forward contracts | Not Designated as Hedging Instrument | Singapore, Dollars
Derivative [Line Items]
Derivative notional amount										17.9	$ 25.3
Foreign exchange forward contracts | Not Designated as Hedging Instrument | Denmark, Kroner
Derivative [Line Items]
Derivative notional amount							kr 52.6			7.8
Foreign exchange forward contracts | Not Designated as Hedging Instrument | Canada, Dollars
Derivative [Line Items]
Derivative notional amount								$ 12.6		9.6
Foreign exchange forward contracts | Not Designated as Hedging Instrument | Hong Kong, Dollars
Derivative [Line Items]
Derivative notional amount						$ 404.4				52.0
Foreign exchange forward contracts | Cash Flow Hedging | Japan, Yen
Derivative [Line Items]
Derivative notional amount	19,880.1									187.2
Foreign exchange forward contracts | Cash Flow Hedging | United Kingdom, Pounds
Derivative [Line Items]
Derivative notional amount		£ 12.7								16.2
July 2016
Derivative [Line Items]
Derivative notional amount	10,620.0									100.0
March 2017
Derivative [Line Items]
Derivative notional amount	11,000.0									96.1
May 2017
Derivative [Line Items]
Derivative notional amount	¥ 5,634.5									50.0
August 2019
Derivative [Line Items]
Derivative notional amount					€ 21.1					$ 23.6