Hedging Instruments - Schedule of Notional Amounts of Outstanding Derivative Positions (Details) - 3 months ended Oct. 31, 2017 € in Millions, ¥ in Millions, £ in Millions, SGD in Millions, SFr in Millions, NZD in Millions, MXN in Millions, AUD in Millions, $ in Millions	JPY (¥)	GBP (£)	AUD	SGD	EUR (€)	NZD	MXN	USD ($)	CHF (SFr)
Foreign Exchange Contract [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Japan, Yen
Derivative [Line Items]
Derivative, Notional Amount	¥ 17,145.0							$ 156.0
Foreign Exchange Contract [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | United Kingdom, Pounds
Derivative [Line Items]
Derivative, Notional Amount		£ 13.5						17.7
Foreign Exchange Contract [Member] | Not Designated as Hedging Instrument [Member] | Japan, Yen
Derivative [Line Items]
Derivative, Notional Amount	¥ 465.6							4.1
Foreign Exchange Contract [Member] | Not Designated as Hedging Instrument [Member] | United Kingdom, Pounds
Derivative [Line Items]
Derivative, Notional Amount		3.8						5.1
Foreign Exchange Contract [Member] | Not Designated as Hedging Instrument [Member] | United States of America, Dollars
Derivative [Line Items]
Derivative, Notional Amount								58.9
Foreign Exchange Contract [Member] | Not Designated as Hedging Instrument [Member] | Euro Member Countries, Euro
Derivative [Line Items]
Derivative, Notional Amount					€ 49.0			58.2
Foreign Exchange Contract [Member] | Not Designated as Hedging Instrument [Member] | Australia, Dollars
Derivative [Line Items]
Derivative, Notional Amount			AUD 14.8					11.6
Foreign Exchange Contract [Member] | Not Designated as Hedging Instrument [Member] | Czech Republic, Koruny
Derivative [Line Items]
Derivative, Notional Amount		£ 166.9						7.6
Foreign Exchange Contract [Member] | Not Designated as Hedging Instrument [Member] | Mexico, Pesos
Derivative [Line Items]
Derivative, Notional Amount							MXN 97.0	5.1
Foreign Exchange Contract [Member] | Not Designated as Hedging Instrument [Member] | New Zealand, Dollars
Derivative [Line Items]
Derivative, Notional Amount						NZD 11.2		8.0
Foreign Exchange Contract [Member] | Not Designated as Hedging Instrument [Member] | Singapore, Dollars
Derivative [Line Items]
Derivative, Notional Amount				SGD 24.3				18.0
Foreign Exchange Contract [Member] | Not Designated as Hedging Instrument [Member] | Switzerland, Francs
Derivative [Line Items]
Derivative, Notional Amount								0.4	SFr 0.4
July 2016 [Member] | Currency Swap [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]
Derivative [Line Items]
Derivative, Maturity Date	Oct. 01, 2024
Derivative, Notional Amount	¥ 10,600.0							100.0
March 2017 [Member] | Currency Swap [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]
Derivative [Line Items]
Derivative, Maturity Date	Apr. 01, 2027
Derivative, Notional Amount	¥ 11,000.0							96.1
May 2017 [Member] | Currency Swap [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]
Derivative [Line Items]
Derivative, Maturity Date	Apr. 01, 2027
Derivative, Notional Amount	¥ 5,600.0							$ 50.0