Hedging Instruments - Schedule of Notional Amounts of Outstanding Derivative Positions (Details) - Jul. 31, 2020 € in Millions, ₩ 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 ($)	CZK (Kč)	EUR (€)	SGD ($)	DKK (kr)	NZD ($)	KRW (₩)	USD ($)	HKD ($)	CNY (¥)
Foreign exchange forward contracts | Not Designated as Hedging Instrument | Japan, Yen
Derivative [Line Items]
Derivative notional amount	¥ 132.2									$ 1.3
Foreign exchange forward contracts | Not Designated as Hedging Instrument | United Kingdom, Pounds
Derivative [Line Items]
Derivative notional amount		£ 13.9								18.0
Foreign exchange forward contracts | Not Designated as Hedging Instrument | United States of America, Dollars
Derivative [Line Items]
Derivative notional amount										126.5
Foreign exchange forward contracts | Not Designated as Hedging Instrument | Euro Member Countries, Euro
Derivative [Line Items]
Derivative notional amount					€ 14.2					16.6
Foreign exchange forward contracts | Not Designated as Hedging Instrument | Australia, Dollars
Derivative [Line Items]
Derivative notional amount			$ 29.2							18.8
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									₩ 20,897.9	17.8
Foreign exchange forward contracts | Not Designated as Hedging Instrument | New Zealand, Dollars
Derivative [Line Items]
Derivative notional amount								$ 8.7		5.2
Foreign exchange forward contracts | Not Designated as Hedging Instrument | China, Yuan Renminbi
Derivative [Line Items]
Derivative notional amount										51.6		¥ 361.2
Foreign exchange forward contracts | Not Designated as Hedging Instrument | Singapore, Dollars
Derivative [Line Items]
Derivative notional amount						$ 25.3				17.9
Foreign exchange forward contracts | Not Designated as Hedging Instrument | Denmark, Kroner
Derivative [Line Items]
Derivative notional amount							kr 49.6			7.6
Foreign exchange forward contracts | Not Designated as Hedging Instrument | Hong Kong, Dollars
Derivative [Line Items]
Derivative notional amount										52.0	$ 404.4
Foreign exchange forward contracts | Cash Flow Hedging | Japan, Yen
Derivative [Line Items]
Derivative notional amount	19,115.1									179.7
Foreign exchange forward contracts | Cash Flow Hedging | United Kingdom, Pounds
Derivative [Line Items]
Derivative notional amount		£ 10.4								13.2
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